-.08(x-100)+.07x=90

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Solution for -.08(x-100)+.07x=90 equation:


Simplifying
-0.08(x + -100) + 0.07x = 90

Reorder the terms:
-0.08(-100 + x) + 0.07x = 90
(-100 * -0.08 + x * -0.08) + 0.07x = 90
(8 + -0.08x) + 0.07x = 90

Combine like terms: -0.08x + 0.07x = -0.01x
8 + -0.01x = 90

Solving
8 + -0.01x = 90

Solving for variable 'x'.

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

Add '-8' to each side of the equation.
8 + -8 + -0.01x = 90 + -8

Combine like terms: 8 + -8 = 0
0 + -0.01x = 90 + -8
-0.01x = 90 + -8

Combine like terms: 90 + -8 = 82
-0.01x = 82

Divide each side by '-0.01'.
x = -8200

Simplifying
x = -8200

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