4x-3(3x+1)=12

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Solution for 4x-3(3x+1)=12 equation:


Simplifying
4x + -3(3x + 1) = 12

Reorder the terms:
4x + -3(1 + 3x) = 12
4x + (1 * -3 + 3x * -3) = 12
4x + (-3 + -9x) = 12

Reorder the terms:
-3 + 4x + -9x = 12

Combine like terms: 4x + -9x = -5x
-3 + -5x = 12

Solving
-3 + -5x = 12

Solving for variable 'x'.

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

Add '3' to each side of the equation.
-3 + 3 + -5x = 12 + 3

Combine like terms: -3 + 3 = 0
0 + -5x = 12 + 3
-5x = 12 + 3

Combine like terms: 12 + 3 = 15
-5x = 15

Divide each side by '-5'.
x = -3

Simplifying
x = -3

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