0.9(x+100)+0.7x=154

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Solution for 0.9(x+100)+0.7x=154 equation: 


Simplifying
0.9(x + 100) + 0.7x = 154

Reorder the terms:
0.9(100 + x) + 0.7x = 154
(100 * 0.9 + x * 0.9) + 0.7x = 154
(90 + 0.9x) + 0.7x = 154

Combine like terms: 0.9x + 0.7x = 1.6x
90 + 1.6x = 154

Solving
90 + 1.6x = 154

Solving for variable 'x'.

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

Add '-90' to each side of the equation.
90 + -90 + 1.6x = 154 + -90

Combine like terms: 90 + -90 = 0
0 + 1.6x = 154 + -90
1.6x = 154 + -90

Combine like terms: 154 + -90 = 64
1.6x = 64

Divide each side by '1.6'.
x = 40

Simplifying
x = 40

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