5x-(x+3)=2x-21

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Solution for 5x-(x+3)=2x-21 equation:


Simplifying
5x + -1(x + 3) = 2x + -21

Reorder the terms:
5x + -1(3 + x) = 2x + -21
5x + (3 * -1 + x * -1) = 2x + -21
5x + (-3 + -1x) = 2x + -21

Reorder the terms:
-3 + 5x + -1x = 2x + -21

Combine like terms: 5x + -1x = 4x
-3 + 4x = 2x + -21

Reorder the terms:
-3 + 4x = -21 + 2x

Solving
-3 + 4x = -21 + 2x

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.
-3 + 4x + -2x = -21 + 2x + -2x

Combine like terms: 4x + -2x = 2x
-3 + 2x = -21 + 2x + -2x

Combine like terms: 2x + -2x = 0
-3 + 2x = -21 + 0
-3 + 2x = -21

Add '3' to each side of the equation.
-3 + 3 + 2x = -21 + 3

Combine like terms: -3 + 3 = 0
0 + 2x = -21 + 3
2x = -21 + 3

Combine like terms: -21 + 3 = -18
2x = -18

Divide each side by '2'.
x = -9

Simplifying
x = -9

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