x+2x+3x-8=100

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Solution for x+2x+3x-8=100 equation:


Simplifying
x + 2x + 3x + -8 = 100

Reorder the terms:
-8 + x + 2x + 3x = 100

Combine like terms: x + 2x = 3x
-8 + 3x + 3x = 100

Combine like terms: 3x + 3x = 6x
-8 + 6x = 100

Solving
-8 + 6x = 100

Solving for variable 'x'.

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

Add '8' to each side of the equation.
-8 + 8 + 6x = 100 + 8

Combine like terms: -8 + 8 = 0
0 + 6x = 100 + 8
6x = 100 + 8

Combine like terms: 100 + 8 = 108
6x = 108

Divide each side by '6'.
x = 18

Simplifying
x = 18

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