57=8-7y

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Solution for 57=8-7y equation:


Simplifying
57 = 8 + -7y

Solving
57 = 8 + -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.
57 + 7y = 8 + -7y + 7y

Combine like terms: -7y + 7y = 0
57 + 7y = 8 + 0
57 + 7y = 8

Add '-57' to each side of the equation.
57 + -57 + 7y = 8 + -57

Combine like terms: 57 + -57 = 0
0 + 7y = 8 + -57
7y = 8 + -57

Combine like terms: 8 + -57 = -49
7y = -49

Divide each side by '7'.
y = -7

Simplifying
y = -7

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