Correct answer: A

The correct answer is $(x,y)=(5,4)$.

1. Choose a system method: Use substitution, elimination, a graph, or an equivalent form that makes one variable easy to determine.
2. Solve for the ordered pair: Add the equations: $2x=10$, so $x=5$. Then $y=4$.
3. Check both equations: Substitute the ordered pair into both original equations and verify that it satisfies each one.

Correct answer: B

The correct answer is $(x,y)=(3,2)$.

1. Choose a system method: Use substitution, elimination, a graph, or an equivalent form that makes one variable easy to determine.
2. Solve for the ordered pair: Subtract the second equation from the first: $4y=8$, so $y=2$. Then $x=3$.
3. Check both equations: Substitute the ordered pair into both original equations and verify that it satisfies each one.

Correct answer: C

The correct answer is $(x,y)=(4,2)$.

1. Choose a system method: Use substitution, elimination, a graph, or an equivalent form that makes one variable easy to determine.
2. Solve for the ordered pair: Add the equations: $6x=24$, so $x=4$. Substitution gives $y=2$.
3. Check both equations: Substitute the ordered pair into both original equations and verify that it satisfies each one.

Correct answer: D

The correct answer is $(x,y)=(3,1)$.

1. Choose a system method: Use substitution, elimination, a graph, or an equivalent form that makes one variable easy to determine.
2. Solve for the ordered pair: Add the equations: $6x=18$, so $x=3$. Then $y=1$.
3. Check both equations: Substitute the ordered pair into both original equations and verify that it satisfies each one.

Correct answer: A

The correct answer is $(x,y)=(4,2)$.

1. Choose a system method: Use substitution, elimination, a graph, or an equivalent form that makes one variable easy to determine.
2. Solve for the ordered pair: Add to get $10x=40$, so $x=4$. Then $y=2$.
3. Check both equations: Substitute the ordered pair into both original equations and verify that it satisfies each one.

Correct answer: B

The correct answer is $(x,y)=(4,\\frac{3}{2})$.

1. Choose a system method: Use substitution, elimination, a graph, or an equivalent form that makes one variable easy to determine.
2. Solve for the ordered pair: Add the equations: $4x=16$, so $x=4$. Then $4+2y=7$, giving $y=\\frac{3}{2}$.
3. Check both equations: Substitute the ordered pair into both original equations and verify that it satisfies each one.

Correct answer: C

The correct answer is $(x,y)=(3,2)$.

1. Choose a system method: Use substitution, elimination, a graph, or an equivalent form that makes one variable easy to determine.
2. Solve for the ordered pair: Add the equations: $6x=18$, so $x=3$. Then $y=2$.
3. Check both equations: Substitute the ordered pair into both original equations and verify that it satisfies each one.

Correct answer: D

The correct answer is $(x,y)=(\\frac{10}{3},2)$.

1. Choose a system method: Use substitution, elimination, a graph, or an equivalent form that makes one variable easy to determine.
2. Solve for the ordered pair: Add the equations: $6x=20$, so $x=\\frac{10}{3}$. Substitution gives $y=2$.
3. Check both equations: Substitute the ordered pair into both original equations and verify that it satisfies each one.

Correct answer: A

The correct answer is $(x,y)=(5,\\frac{9}{5})$.

1. Choose a system method: Use substitution, elimination, a graph, or an equivalent form that makes one variable easy to determine.
2. Solve for the ordered pair: Add to get $4x=20$, so $x=5$. From the first equation, $10+5y=19$, so $y=\\frac{9}{5}$.
3. Check both equations: Substitute the ordered pair into both original equations and verify that it satisfies each one.

Correct answer: B

The correct answer is $(x,y)=(2,3)$.

1. Choose a system method: Use substitution, elimination, a graph, or an equivalent form that makes one variable easy to determine.
2. Solve for the ordered pair: Add the equations: $14x=28$, so $x=2$. Then $14+2y=20$, giving $y=3$.
3. Check both equations: Substitute the ordered pair into both original equations and verify that it satisfies each one.