(6x+18)+(40-2x)=90

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Solution for (6x+18)+(40-2x)=90 equation: 


Simplifying
(6x + 18) + (40 + -2x) = 90

Reorder the terms:
(18 + 6x) + (40 + -2x) = 90

Remove parenthesis around (18 + 6x)
18 + 6x + (40 + -2x) = 90

Remove parenthesis around (40 + -2x)
18 + 6x + 40 + -2x = 90

Reorder the terms:
18 + 40 + 6x + -2x = 90

Combine like terms: 18 + 40 = 58
58 + 6x + -2x = 90

Combine like terms: 6x + -2x = 4x
58 + 4x = 90

Solving
58 + 4x = 90

Solving for variable 'x'.

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

Add '-58' to each side of the equation.
58 + -58 + 4x = 90 + -58

Combine like terms: 58 + -58 = 0
0 + 4x = 90 + -58
4x = 90 + -58

Combine like terms: 90 + -58 = 32
4x = 32

Divide each side by '4'.
x = 8

Simplifying
x = 8

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