.9(x+80)+.7x=136

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Solution for .9(x+80)+.7x=136 equation:


Simplifying
0.9(x + 80) + 0.7x = 136

Reorder the terms:
0.9(80 + x) + 0.7x = 136
(80 * 0.9 + x * 0.9) + 0.7x = 136
(72 + 0.9x) + 0.7x = 136

Combine like terms: 0.9x + 0.7x = 1.6x
72 + 1.6x = 136

Solving
72 + 1.6x = 136

Solving for variable 'x'.

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

Add '-72' to each side of the equation.
72 + -72 + 1.6x = 136 + -72

Combine like terms: 72 + -72 = 0
0 + 1.6x = 136 + -72
1.6x = 136 + -72

Combine like terms: 136 + -72 = 64
1.6x = 64

Divide each side by '1.6'.
x = 40

Simplifying
x = 40

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