x=7(90-x)

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Solution for x=7(90-x) equation:


Simplifying
x = 7(90 + -1x)
x = (90 * 7 + -1x * 7)
x = (630 + -7x)

Solving
x = 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.
x + 7x = 630 + -7x + 7x

Combine like terms: x + 7x = 8x
8x = 630 + -7x + 7x

Combine like terms: -7x + 7x = 0
8x = 630 + 0
8x = 630

Divide each side by '8'.
x = 78.75

Simplifying
x = 78.75

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