3x+7+8x=128

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Solution for 3x+7+8x=128 equation:


Simplifying
3x + 7 + 8x = 128

Reorder the terms:
7 + 3x + 8x = 128

Combine like terms: 3x + 8x = 11x
7 + 11x = 128

Solving
7 + 11x = 128

Solving for variable 'x'.

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

Add '-7' to each side of the equation.
7 + -7 + 11x = 128 + -7

Combine like terms: 7 + -7 = 0
0 + 11x = 128 + -7
11x = 128 + -7

Combine like terms: 128 + -7 = 121
11x = 121

Divide each side by '11'.
x = 11

Simplifying
x = 11

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