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

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


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

Reorder the terms:
21 = -2(-5 + 3x) + 2x + 3
21 = (-5 * -2 + 3x * -2) + 2x + 3
21 = (10 + -6x) + 2x + 3

Reorder the terms:
21 = 10 + 3 + -6x + 2x

Combine like terms: 10 + 3 = 13
21 = 13 + -6x + 2x

Combine like terms: -6x + 2x = -4x
21 = 13 + -4x

Solving
21 = 13 + -4x

Solving for variable 'x'.

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

Add '4x' to each side of the equation.
21 + 4x = 13 + -4x + 4x

Combine like terms: -4x + 4x = 0
21 + 4x = 13 + 0
21 + 4x = 13

Add '-21' to each side of the equation.
21 + -21 + 4x = 13 + -21

Combine like terms: 21 + -21 = 0
0 + 4x = 13 + -21
4x = 13 + -21

Combine like terms: 13 + -21 = -8
4x = -8

Divide each side by '4'.
x = -2

Simplifying
x = -2

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