0.9(x+90)+0.3x=117

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Solution for 0.9(x+90)+0.3x=117 equation: 


Simplifying
0.9(x + 90) + 0.3x = 117

Reorder the terms:
0.9(90 + x) + 0.3x = 117
(90 * 0.9 + x * 0.9) + 0.3x = 117
(81 + 0.9x) + 0.3x = 117

Combine like terms: 0.9x + 0.3x = 1.2x
81 + 1.2x = 117

Solving
81 + 1.2x = 117

Solving for variable 'x'.

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

Add '-81' to each side of the equation.
81 + -81 + 1.2x = 117 + -81

Combine like terms: 81 + -81 = 0
0 + 1.2x = 117 + -81
1.2x = 117 + -81

Combine like terms: 117 + -81 = 36
1.2x = 36

Divide each side by '1.2'.
x = 30

Simplifying
x = 30

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