.07(x+200)+.13x=84

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Solution for .07(x+200)+.13x=84 equation:


Simplifying
0.07(x + 200) + 0.13x = 84

Reorder the terms:
0.07(200 + x) + 0.13x = 84
(200 * 0.07 + x * 0.07) + 0.13x = 84
(14 + 0.07x) + 0.13x = 84

Combine like terms: 0.07x + 0.13x = 0.2x
14 + 0.2x = 84

Solving
14 + 0.2x = 84

Solving for variable 'x'.

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

Add '-14' to each side of the equation.
14 + -14 + 0.2x = 84 + -14

Combine like terms: 14 + -14 = 0
0 + 0.2x = 84 + -14
0.2x = 84 + -14

Combine like terms: 84 + -14 = 70
0.2x = 70

Divide each side by '0.2'.
x = 350

Simplifying
x = 350

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