-54-8x=7x+21

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Solution for -54-8x=7x+21 equation:


Simplifying
-54 + -8x = 7x + 21

Reorder the terms:
-54 + -8x = 21 + 7x

Solving
-54 + -8x = 21 + 7x

Solving for variable 'x'.

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

Add '-7x' to each side of the equation.
-54 + -8x + -7x = 21 + 7x + -7x

Combine like terms: -8x + -7x = -15x
-54 + -15x = 21 + 7x + -7x

Combine like terms: 7x + -7x = 0
-54 + -15x = 21 + 0
-54 + -15x = 21

Add '54' to each side of the equation.
-54 + 54 + -15x = 21 + 54

Combine like terms: -54 + 54 = 0
0 + -15x = 21 + 54
-15x = 21 + 54

Combine like terms: 21 + 54 = 75
-15x = 75

Divide each side by '-15'.
x = -5

Simplifying
x = -5

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