Substitution Method Practice Problems with Answers

Solve the systems of equations using the substitution method.

Problem 1

y=3; 2x-y=7
Answer
x=5, y=3

Problem 2

-3x+7y=-9; x=-4
Answer
x=-4, y=-3

Problem 3

x=-4y-11; 2x+y=6
Answer
x=5, y=-4

Problem 4

x-3y=7; x=2y+2
Answer
x=-8, y=-5

Problem 5

2x-3y=-8; -x-7y=-13
Answer
x=-1, y=2

Problem 6

-3x+y=-12; 7x-6y=17
Answer
x=5, y=3

Problem 7

8x-y=7; -7x-2y=14
Answer
x=0, y=-7

Problem 8

5x-7y=-9; 4x+y=6
Answer
x=1, y=2

Problem 9

x-2y=1; 7x-6y=23
Answer
x=5, y=2

Problem 10

3x-4y=9; -x-5y=-22
Answer
x=7, y=3

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