3(4x+2)-21=6x+3

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Solution for 3(4x+2)-21=6x+3 equation:


Simplifying
3(4x + 2) + -21 = 6x + 3

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

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

Combine like terms: 6 + -21 = -15
-15 + 12x = 6x + 3

Reorder the terms:
-15 + 12x = 3 + 6x

Solving
-15 + 12x = 3 + 6x

Solving for variable 'x'.

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

Add '-6x' to each side of the equation.
-15 + 12x + -6x = 3 + 6x + -6x

Combine like terms: 12x + -6x = 6x
-15 + 6x = 3 + 6x + -6x

Combine like terms: 6x + -6x = 0
-15 + 6x = 3 + 0
-15 + 6x = 3

Add '15' to each side of the equation.
-15 + 15 + 6x = 3 + 15

Combine like terms: -15 + 15 = 0
0 + 6x = 3 + 15
6x = 3 + 15

Combine like terms: 3 + 15 = 18
6x = 18

Divide each side by '6'.
x = 3

Simplifying
x = 3

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