4(x+2)-3x=21

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


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

Reorder the terms:
4(2 + x) + -3x = 21
(2 * 4 + x * 4) + -3x = 21
(8 + 4x) + -3x = 21

Combine like terms: 4x + -3x = 1x
8 + 1x = 21

Solving
8 + 1x = 21

Solving for variable 'x'.

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

Add '-8' to each side of the equation.
8 + -8 + 1x = 21 + -8

Combine like terms: 8 + -8 = 0
0 + 1x = 21 + -8
1x = 21 + -8

Combine like terms: 21 + -8 = 13
1x = 13

Divide each side by '1'.
x = 13

Simplifying
x = 13

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