-1=7+8y

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Solution for -1=7+8y equation:


Simplifying
-1 = 7 + 8y

Solving
-1 = 7 + 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.
-1 + -8y = 7 + 8y + -8y

Combine like terms: 8y + -8y = 0
-1 + -8y = 7 + 0
-1 + -8y = 7

Add '1' to each side of the equation.
-1 + 1 + -8y = 7 + 1

Combine like terms: -1 + 1 = 0
0 + -8y = 7 + 1
-8y = 7 + 1

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

Divide each side by '-8'.
y = -1

Simplifying
y = -1

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