3x+9x+7=43

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Solution for 3x+9x+7=43 equation: 


Simplifying
3x + 9x + 7 = 43

Reorder the terms:
7 + 3x + 9x = 43

Combine like terms: 3x + 9x = 12x
7 + 12x = 43

Solving
7 + 12x = 43

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 + 12x = 43 + -7

Combine like terms: 7 + -7 = 0
0 + 12x = 43 + -7
12x = 43 + -7

Combine like terms: 43 + -7 = 36
12x = 36

Divide each side by '12'.
x = 3

Simplifying
x = 3

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