3x+4+8x+4=140

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Solution for 3x+4+8x+4=140 equation:


Simplifying
3x + 4 + 8x + 4 = 140

Reorder the terms:
4 + 4 + 3x + 8x = 140

Combine like terms: 4 + 4 = 8
8 + 3x + 8x = 140

Combine like terms: 3x + 8x = 11x
8 + 11x = 140

Solving
8 + 11x = 140

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 + 11x = 140 + -8

Combine like terms: 8 + -8 = 0
0 + 11x = 140 + -8
11x = 140 + -8

Combine like terms: 140 + -8 = 132
11x = 132

Divide each side by '11'.
x = 12

Simplifying
x = 12

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