x-8x=21+28

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Solution for x-8x=21+28 equation: 


Simplifying
x + -8x = 21 + 28

Combine like terms: x + -8x = -7x
-7x = 21 + 28

Combine like terms: 21 + 28 = 49
-7x = 49

Solving
-7x = 49

Solving for variable 'x'.

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

Divide each side by '-7'.
x = -7

Simplifying
x = -7

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