5(x+9)=-3(21+x)

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Solution for 5(x+9)=-3(21+x) equation:


Simplifying
5(x + 9) = -3(21 + x)

Reorder the terms:
5(9 + x) = -3(21 + x)
(9 * 5 + x * 5) = -3(21 + x)
(45 + 5x) = -3(21 + x)
45 + 5x = (21 * -3 + x * -3)
45 + 5x = (-63 + -3x)

Solving
45 + 5x = -63 + -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.
45 + 5x + 3x = -63 + -3x + 3x

Combine like terms: 5x + 3x = 8x
45 + 8x = -63 + -3x + 3x

Combine like terms: -3x + 3x = 0
45 + 8x = -63 + 0
45 + 8x = -63

Add '-45' to each side of the equation.
45 + -45 + 8x = -63 + -45

Combine like terms: 45 + -45 = 0
0 + 8x = -63 + -45
8x = -63 + -45

Combine like terms: -63 + -45 = -108
8x = -108

Divide each side by '8'.
x = -13.5

Simplifying
x = -13.5

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