7y+12=8y-13

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Solution for 7y+12=8y-13 equation:


Simplifying
7y + 12 = 8y + -13

Reorder the terms:
12 + 7y = 8y + -13

Reorder the terms:
12 + 7y = -13 + 8y

Solving
12 + 7y = -13 + 8y

Solving for variable 'y'.

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

Add '-8y' to each side of the equation.
12 + 7y + -8y = -13 + 8y + -8y

Combine like terms: 7y + -8y = -1y
12 + -1y = -13 + 8y + -8y

Combine like terms: 8y + -8y = 0
12 + -1y = -13 + 0
12 + -1y = -13

Add '-12' to each side of the equation.
12 + -12 + -1y = -13 + -12

Combine like terms: 12 + -12 = 0
0 + -1y = -13 + -12
-1y = -13 + -12

Combine like terms: -13 + -12 = -25
-1y = -25

Divide each side by '-1'.
y = 25

Simplifying
y = 25

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