90+x=7x

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Solution for 90+x=7x equation:


Simplifying
90 + x = 7x

Solving
90 + x = 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 + x + -7x = 7x + -7x

Combine like terms: x + -7x = -6x
90 + -6x = 7x + -7x

Combine like terms: 7x + -7x = 0
90 + -6x = 0

Add '-90' to each side of the equation.
90 + -90 + -6x = 0 + -90

Combine like terms: 90 + -90 = 0
0 + -6x = 0 + -90
-6x = 0 + -90

Combine like terms: 0 + -90 = -90
-6x = -90

Divide each side by '-6'.
x = 15

Simplifying
x = 15

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