7y-9(-25-9y)=77

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Solution for 7y-9(-25-9y)=77 equation:


Simplifying
7y + -9(-25 + -9y) = 77
7y + (-25 * -9 + -9y * -9) = 77
7y + (225 + 81y) = 77

Reorder the terms:
225 + 7y + 81y = 77

Combine like terms: 7y + 81y = 88y
225 + 88y = 77

Solving
225 + 88y = 77

Solving for variable 'y'.

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

Add '-225' to each side of the equation.
225 + -225 + 88y = 77 + -225

Combine like terms: 225 + -225 = 0
0 + 88y = 77 + -225
88y = 77 + -225

Combine like terms: 77 + -225 = -148
88y = -148

Divide each side by '88'.
y = -1.681818182

Simplifying
y = -1.681818182

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