5[x+3]-2x=-21

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Solution for 5[x+3]-2x=-21 equation:


Simplifying
5[x + 3] + -2x = -21

Reorder the terms:
5[3 + x] + -2x = -21
[3 * 5 + x * 5] + -2x = -21
[15 + 5x] + -2x = -21

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

Solving
15 + 3x = -21

Solving for variable 'x'.

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

Add '-15' to each side of the equation.
15 + -15 + 3x = -21 + -15

Combine like terms: 15 + -15 = 0
0 + 3x = -21 + -15
3x = -21 + -15

Combine like terms: -21 + -15 = -36
3x = -36

Divide each side by '3'.
x = -12

Simplifying
x = -12

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