3(4x-2)=3x+21

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Solution for 3(4x-2)=3x+21 equation:


Simplifying
3(4x + -2) = 3x + 21

Reorder the terms:
3(-2 + 4x) = 3x + 21
(-2 * 3 + 4x * 3) = 3x + 21
(-6 + 12x) = 3x + 21

Reorder the terms:
-6 + 12x = 21 + 3x

Solving
-6 + 12x = 21 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
-6 + 12x + -3x = 21 + 3x + -3x

Combine like terms: 12x + -3x = 9x
-6 + 9x = 21 + 3x + -3x

Combine like terms: 3x + -3x = 0
-6 + 9x = 21 + 0
-6 + 9x = 21

Add '6' to each side of the equation.
-6 + 6 + 9x = 21 + 6

Combine like terms: -6 + 6 = 0
0 + 9x = 21 + 6
9x = 21 + 6

Combine like terms: 21 + 6 = 27
9x = 27

Divide each side by '9'.
x = 3

Simplifying
x = 3

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