3x-17+x+40+2x-5=90

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Solution for 3x-17+x+40+2x-5=90 equation:


Simplifying
3x + -17 + x + 40 + 2x + -5 = 90

Reorder the terms:
-17 + 40 + -5 + 3x + x + 2x = 90

Combine like terms: -17 + 40 = 23
23 + -5 + 3x + x + 2x = 90

Combine like terms: 23 + -5 = 18
18 + 3x + x + 2x = 90

Combine like terms: 3x + x = 4x
18 + 4x + 2x = 90

Combine like terms: 4x + 2x = 6x
18 + 6x = 90

Solving
18 + 6x = 90

Solving for variable 'x'.

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

Add '-18' to each side of the equation.
18 + -18 + 6x = 90 + -18

Combine like terms: 18 + -18 = 0
0 + 6x = 90 + -18
6x = 90 + -18

Combine like terms: 90 + -18 = 72
6x = 72

Divide each side by '6'.
x = 12

Simplifying
x = 12

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