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

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


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

Reorder the terms:
2x + 5(3 + 2x) = -21
2x + (3 * 5 + 2x * 5) = -21
2x + (15 + 10x) = -21

Reorder the terms:
15 + 2x + 10x = -21

Combine like terms: 2x + 10x = 12x
15 + 12x = -21

Solving
15 + 12x = -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 + 12x = -21 + -15

Combine like terms: 15 + -15 = 0
0 + 12x = -21 + -15
12x = -21 + -15

Combine like terms: -21 + -15 = -36
12x = -36

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

Simplifying
x = -3

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