3x+9x-7=54

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Solution for 3x+9x-7=54 equation:


Simplifying
3x + 9x + -7 = 54

Reorder the terms:
-7 + 3x + 9x = 54

Combine like terms: 3x + 9x = 12x
-7 + 12x = 54

Solving
-7 + 12x = 54

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 = 54 + 7

Combine like terms: -7 + 7 = 0
0 + 12x = 54 + 7
12x = 54 + 7

Combine like terms: 54 + 7 = 61
12x = 61

Divide each side by '12'.
x = 5.083333333

Simplifying
x = 5.083333333

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