x+x-180(.5)=7(90-x)

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Solution for x+x-180(.5)=7(90-x) equation:


Simplifying
x + x + -180(0.5) = 7(90 + -1x)

Multiply -180 * 0.5
x + x + -90 = 7(90 + -1x)

Reorder the terms:
-90 + x + x = 7(90 + -1x)

Combine like terms: x + x = 2x
-90 + 2x = 7(90 + -1x)
-90 + 2x = (90 * 7 + -1x * 7)
-90 + 2x = (630 + -7x)

Solving
-90 + 2x = 630 + -7x

Solving for variable 'x'.

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

Add '7x' to each side of the equation.
-90 + 2x + 7x = 630 + -7x + 7x

Combine like terms: 2x + 7x = 9x
-90 + 9x = 630 + -7x + 7x

Combine like terms: -7x + 7x = 0
-90 + 9x = 630 + 0
-90 + 9x = 630

Add '90' to each side of the equation.
-90 + 90 + 9x = 630 + 90

Combine like terms: -90 + 90 = 0
0 + 9x = 630 + 90
9x = 630 + 90

Combine like terms: 630 + 90 = 720
9x = 720

Divide each side by '9'.
x = 80

Simplifying
x = 80

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