4x+77=9x-8

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Solution for 4x+77=9x-8 equation:


Simplifying
4x + 77 = 9x + -8

Reorder the terms:
77 + 4x = 9x + -8

Reorder the terms:
77 + 4x = -8 + 9x

Solving
77 + 4x = -8 + 9x

Solving for variable 'x'.

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

Add '-9x' to each side of the equation.
77 + 4x + -9x = -8 + 9x + -9x

Combine like terms: 4x + -9x = -5x
77 + -5x = -8 + 9x + -9x

Combine like terms: 9x + -9x = 0
77 + -5x = -8 + 0
77 + -5x = -8

Add '-77' to each side of the equation.
77 + -77 + -5x = -8 + -77

Combine like terms: 77 + -77 = 0
0 + -5x = -8 + -77
-5x = -8 + -77

Combine like terms: -8 + -77 = -85
-5x = -85

Divide each side by '-5'.
x = 17

Simplifying
x = 17

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