x-(90+0.3x)=0.2x

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Solution for x-(90+0.3x)=0.2x equation:


Simplifying
x + -1(90 + 0.3x) = 0.2x
x + (90 * -1 + 0.3x * -1) = 0.2x
x + (-90 + -0.3x) = 0.2x

Reorder the terms:
-90 + x + -0.3x = 0.2x

Combine like terms: x + -0.3x = 0.7x
-90 + 0.7x = 0.2x

Solving
-90 + 0.7x = 0.2x

Solving for variable 'x'.

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

Add '-0.2x' to each side of the equation.
-90 + 0.7x + -0.2x = 0.2x + -0.2x

Combine like terms: 0.7x + -0.2x = 0.5x
-90 + 0.5x = 0.2x + -0.2x

Combine like terms: 0.2x + -0.2x = 0.0
-90 + 0.5x = 0.0

Add '90' to each side of the equation.
-90 + 90 + 0.5x = 0.0 + 90

Combine like terms: -90 + 90 = 0
0 + 0.5x = 0.0 + 90
0.5x = 0.0 + 90

Combine like terms: 0.0 + 90 = 90
0.5x = 90

Divide each side by '0.5'.
x = 180

Simplifying
x = 180

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