21x-64=188-7x

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Solution for 21x-64=188-7x equation:


Simplifying
21x + -64 = 188 + -7x

Reorder the terms:
-64 + 21x = 188 + -7x

Solving
-64 + 21x = 188 + -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.
-64 + 21x + 7x = 188 + -7x + 7x

Combine like terms: 21x + 7x = 28x
-64 + 28x = 188 + -7x + 7x

Combine like terms: -7x + 7x = 0
-64 + 28x = 188 + 0
-64 + 28x = 188

Add '64' to each side of the equation.
-64 + 64 + 28x = 188 + 64

Combine like terms: -64 + 64 = 0
0 + 28x = 188 + 64
28x = 188 + 64

Combine like terms: 188 + 64 = 252
28x = 252

Divide each side by '28'.
x = 9

Simplifying
x = 9

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