3x+3(4x-15)=135

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Solution for 3x+3(4x-15)=135 equation:


Simplifying
3x + 3(4x + -15) = 135

Reorder the terms:
3x + 3(-15 + 4x) = 135
3x + (-15 * 3 + 4x * 3) = 135
3x + (-45 + 12x) = 135

Reorder the terms:
-45 + 3x + 12x = 135

Combine like terms: 3x + 12x = 15x
-45 + 15x = 135

Solving
-45 + 15x = 135

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 + 15x = 135 + 45

Combine like terms: -45 + 45 = 0
0 + 15x = 135 + 45
15x = 135 + 45

Combine like terms: 135 + 45 = 180
15x = 180

Divide each side by '15'.
x = 12

Simplifying
x = 12

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