3x+3(3x-15)=39

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Solution for 3x+3(3x-15)=39 equation:


Simplifying
3x + 3(3x + -15) = 39

Reorder the terms:
3x + 3(-15 + 3x) = 39
3x + (-15 * 3 + 3x * 3) = 39
3x + (-45 + 9x) = 39

Reorder the terms:
-45 + 3x + 9x = 39

Combine like terms: 3x + 9x = 12x
-45 + 12x = 39

Solving
-45 + 12x = 39

Solving for variable 'x'.

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

Add '45' to each side of the equation.
-45 + 45 + 12x = 39 + 45

Combine like terms: -45 + 45 = 0
0 + 12x = 39 + 45
12x = 39 + 45

Combine like terms: 39 + 45 = 84
12x = 84

Divide each side by '12'.
x = 7

Simplifying
x = 7

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