9y-9(7y+4)=126

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Solution for 9y-9(7y+4)=126 equation:


Simplifying
9y + -9(7y + 4) = 126

Reorder the terms:
9y + -9(4 + 7y) = 126
9y + (4 * -9 + 7y * -9) = 126
9y + (-36 + -63y) = 126

Reorder the terms:
-36 + 9y + -63y = 126

Combine like terms: 9y + -63y = -54y
-36 + -54y = 126

Solving
-36 + -54y = 126

Solving for variable 'y'.

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

Add '36' to each side of the equation.
-36 + 36 + -54y = 126 + 36

Combine like terms: -36 + 36 = 0
0 + -54y = 126 + 36
-54y = 126 + 36

Combine like terms: 126 + 36 = 162
-54y = 162

Divide each side by '-54'.
y = -3

Simplifying
y = -3

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