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

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


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

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

Combine like terms: 21 + -6 = 15
15 + 3x = 2x + -5

Reorder the terms:
15 + 3x = -5 + 2x

Solving
15 + 3x = -5 + 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.
15 + 3x + -2x = -5 + 2x + -2x

Combine like terms: 3x + -2x = 1x
15 + 1x = -5 + 2x + -2x

Combine like terms: 2x + -2x = 0
15 + 1x = -5 + 0
15 + 1x = -5

Add '-15' to each side of the equation.
15 + -15 + 1x = -5 + -15

Combine like terms: 15 + -15 = 0
0 + 1x = -5 + -15
1x = -5 + -15

Combine like terms: -5 + -15 = -20
1x = -20

Divide each side by '1'.
x = -20

Simplifying
x = -20

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