45-21=-8x

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Solution for 45-21=-8x equation:


Simplifying
45 + -21 = -8x

Combine like terms: 45 + -21 = 24
24 = -8x

Solving
24 = -8x

Solving for variable 'x'.

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

Add '8x' to each side of the equation.
24 + 8x = -8x + 8x

Combine like terms: -8x + 8x = 0
24 + 8x = 0

Add '-24' to each side of the equation.
24 + -24 + 8x = 0 + -24

Combine like terms: 24 + -24 = 0
0 + 8x = 0 + -24
8x = 0 + -24

Combine like terms: 0 + -24 = -24
8x = -24

Divide each side by '8'.
x = -3

Simplifying
x = -3

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