-2y-7=7y+20

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Solution for -2y-7=7y+20 equation:


Simplifying
-2y + -7 = 7y + 20

Reorder the terms:
-7 + -2y = 7y + 20

Reorder the terms:
-7 + -2y = 20 + 7y

Solving
-7 + -2y = 20 + 7y

Solving for variable 'y'.

Move all terms containing y to the left, all other terms to the right.

Add '-7y' to each side of the equation.
-7 + -2y + -7y = 20 + 7y + -7y

Combine like terms: -2y + -7y = -9y
-7 + -9y = 20 + 7y + -7y

Combine like terms: 7y + -7y = 0
-7 + -9y = 20 + 0
-7 + -9y = 20

Add '7' to each side of the equation.
-7 + 7 + -9y = 20 + 7

Combine like terms: -7 + 7 = 0
0 + -9y = 20 + 7
-9y = 20 + 7

Combine like terms: 20 + 7 = 27
-9y = 27

Divide each side by '-9'.
y = -3

Simplifying
y = -3

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