9y-8(y-1)+4=12

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Solution for 9y-8(y-1)+4=12 equation:


Simplifying
9y + -8(y + -1) + 4 = 12

Reorder the terms:
9y + -8(-1 + y) + 4 = 12
9y + (-1 * -8 + y * -8) + 4 = 12
9y + (8 + -8y) + 4 = 12

Reorder the terms:
8 + 4 + 9y + -8y = 12

Combine like terms: 8 + 4 = 12
12 + 9y + -8y = 12

Combine like terms: 9y + -8y = 1y
12 + 1y = 12

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

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

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

Solving
1y = 0

Solving for variable 'y'.

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

Divide each side by '1'.
y = 0

Simplifying
y = 0

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