5(x-8)-4=21x-172

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Solution for 5(x-8)-4=21x-172 equation:


Simplifying
5(x + -8) + -4 = 21x + -172

Reorder the terms:
5(-8 + x) + -4 = 21x + -172
(-8 * 5 + x * 5) + -4 = 21x + -172
(-40 + 5x) + -4 = 21x + -172

Reorder the terms:
-40 + -4 + 5x = 21x + -172

Combine like terms: -40 + -4 = -44
-44 + 5x = 21x + -172

Reorder the terms:
-44 + 5x = -172 + 21x

Solving
-44 + 5x = -172 + 21x

Solving for variable 'x'.

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

Add '-21x' to each side of the equation.
-44 + 5x + -21x = -172 + 21x + -21x

Combine like terms: 5x + -21x = -16x
-44 + -16x = -172 + 21x + -21x

Combine like terms: 21x + -21x = 0
-44 + -16x = -172 + 0
-44 + -16x = -172

Add '44' to each side of the equation.
-44 + 44 + -16x = -172 + 44

Combine like terms: -44 + 44 = 0
0 + -16x = -172 + 44
-16x = -172 + 44

Combine like terms: -172 + 44 = -128
-16x = -128

Divide each side by '-16'.
x = 8

Simplifying
x = 8

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