4+5x+4x=85

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Solution for 4+5x+4x=85 equation: 


Simplifying
4 + 5x + 4x = 85

Combine like terms: 5x + 4x = 9x
4 + 9x = 85

Solving
4 + 9x = 85

Solving for variable 'x'.

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

Add '-4' to each side of the equation.
4 + -4 + 9x = 85 + -4

Combine like terms: 4 + -4 = 0
0 + 9x = 85 + -4
9x = 85 + -4

Combine like terms: 85 + -4 = 81
9x = 81

Divide each side by '9'.
x = 9

Simplifying
x = 9

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