4+5(x+3)=3x-21

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Solution for 4+5(x+3)=3x-21 equation:


Simplifying
4 + 5(x + 3) = 3x + -21

Reorder the terms:
4 + 5(3 + x) = 3x + -21
4 + (3 * 5 + x * 5) = 3x + -21
4 + (15 + 5x) = 3x + -21

Combine like terms: 4 + 15 = 19
19 + 5x = 3x + -21

Reorder the terms:
19 + 5x = -21 + 3x

Solving
19 + 5x = -21 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
19 + 5x + -3x = -21 + 3x + -3x

Combine like terms: 5x + -3x = 2x
19 + 2x = -21 + 3x + -3x

Combine like terms: 3x + -3x = 0
19 + 2x = -21 + 0
19 + 2x = -21

Add '-19' to each side of the equation.
19 + -19 + 2x = -21 + -19

Combine like terms: 19 + -19 = 0
0 + 2x = -21 + -19
2x = -21 + -19

Combine like terms: -21 + -19 = -40
2x = -40

Divide each side by '2'.
x = -20

Simplifying
x = -20

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