7x+4x-18=90-7x

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Solution for 7x+4x-18=90-7x equation:


Simplifying
7x + 4x + -18 = 90 + -7x

Reorder the terms:
-18 + 7x + 4x = 90 + -7x

Combine like terms: 7x + 4x = 11x
-18 + 11x = 90 + -7x

Solving
-18 + 11x = 90 + -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.
-18 + 11x + 7x = 90 + -7x + 7x

Combine like terms: 11x + 7x = 18x
-18 + 18x = 90 + -7x + 7x

Combine like terms: -7x + 7x = 0
-18 + 18x = 90 + 0
-18 + 18x = 90

Add '18' to each side of the equation.
-18 + 18 + 18x = 90 + 18

Combine like terms: -18 + 18 = 0
0 + 18x = 90 + 18
18x = 90 + 18

Combine like terms: 90 + 18 = 108
18x = 108

Divide each side by '18'.
x = 6

Simplifying
x = 6

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