y=6x y=5x+7

solve each system by subsitution
in order of operations by

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1 Answer

Problem: y=6x y=5x+7
solve each system by subsitution

y = 6x
y = 5x + 7

Substitute the value of y from the first
equation into the second equation.

y = 5x + 7
6x = 5x + 7
6x - 5x = 5x + 7 - 5x
x = 7  

Now, you can solve for y.

y = 6x
y = 6(7)
y = 42

Use the other equation to check.

y = 5x + 7
42 = 5(7) + 7
42 = 35 + 7
42 = 42

Answer: x = 7, y = 42

by Level 11 User (78.4k points)

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