3x+12+5x+38+90=180

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Solution for 3x+12+5x+38+90=180 equation:


Simplifying
3x + 12 + 5x + 38 + 90 = 180

Reorder the terms:
12 + 38 + 90 + 3x + 5x = 180

Combine like terms: 12 + 38 = 50
50 + 90 + 3x + 5x = 180

Combine like terms: 50 + 90 = 140
140 + 3x + 5x = 180

Combine like terms: 3x + 5x = 8x
140 + 8x = 180

Solving
140 + 8x = 180

Solving for variable 'x'.

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

Add '-140' to each side of the equation.
140 + -140 + 8x = 180 + -140

Combine like terms: 140 + -140 = 0
0 + 8x = 180 + -140
8x = 180 + -140

Combine like terms: 180 + -140 = 40
8x = 40

Divide each side by '8'.
x = 5

Simplifying
x = 5

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