45-8x=8x-21

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Solution for 45-8x=8x-21 equation:


Simplifying
45 + -8x = 8x + -21

Reorder the terms:
45 + -8x = -21 + 8x

Solving
45 + -8x = -21 + 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.
45 + -8x + -8x = -21 + 8x + -8x

Combine like terms: -8x + -8x = -16x
45 + -16x = -21 + 8x + -8x

Combine like terms: 8x + -8x = 0
45 + -16x = -21 + 0
45 + -16x = -21

Add '-45' to each side of the equation.
45 + -45 + -16x = -21 + -45

Combine like terms: 45 + -45 = 0
0 + -16x = -21 + -45
-16x = -21 + -45

Combine like terms: -21 + -45 = -66
-16x = -66

Divide each side by '-16'.
x = 4.125

Simplifying
x = 4.125

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