7x+85=13-9x

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Solution for 7x+85=13-9x equation:


Simplifying
7x + 85 = 13 + -9x

Reorder the terms:
85 + 7x = 13 + -9x

Solving
85 + 7x = 13 + -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.
85 + 7x + 9x = 13 + -9x + 9x

Combine like terms: 7x + 9x = 16x
85 + 16x = 13 + -9x + 9x

Combine like terms: -9x + 9x = 0
85 + 16x = 13 + 0
85 + 16x = 13

Add '-85' to each side of the equation.
85 + -85 + 16x = 13 + -85

Combine like terms: 85 + -85 = 0
0 + 16x = 13 + -85
16x = 13 + -85

Combine like terms: 13 + -85 = -72
16x = -72

Divide each side by '16'.
x = -4.5

Simplifying
x = -4.5

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