9x-13=77

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Solution for 9x-13=77 equation: 


Simplifying
9x + -13 = 77

Reorder the terms:
-13 + 9x = 77

Solving
-13 + 9x = 77

Solving for variable 'x'.

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

Add '13' to each side of the equation.
-13 + 13 + 9x = 77 + 13

Combine like terms: -13 + 13 = 0
0 + 9x = 77 + 13
9x = 77 + 13

Combine like terms: 77 + 13 = 90
9x = 90

Divide each side by '9'.
x = 10

Simplifying
x = 10

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