3(5x+3)=-21

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


Simplifying
3(5x + 3) = -21

Reorder the terms:
3(3 + 5x) = -21
(3 * 3 + 5x * 3) = -21
(9 + 15x) = -21

Solving
9 + 15x = -21

Solving for variable 'x'.

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

Add '-9' to each side of the equation.
9 + -9 + 15x = -21 + -9

Combine like terms: 9 + -9 = 0
0 + 15x = -21 + -9
15x = -21 + -9

Combine like terms: -21 + -9 = -30
15x = -30

Divide each side by '15'.
x = -2

Simplifying
x = -2

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