9x=91-4x

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Solution for 9x=91-4x equation: 


Simplifying
9x = 91 + -4x

Solving
9x = 91 + -4x

Solving for variable 'x'.

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

Add '4x' to each side of the equation.
9x + 4x = 91 + -4x + 4x

Combine like terms: 9x + 4x = 13x
13x = 91 + -4x + 4x

Combine like terms: -4x + 4x = 0
13x = 91 + 0
13x = 91

Divide each side by '13'.
x = 7

Simplifying
x = 7

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