9x-21=84x-28

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Solution for 9x-21=84x-28 equation:


Simplifying
9x + -21 = 84x + -28

Reorder the terms:
-21 + 9x = 84x + -28

Reorder the terms:
-21 + 9x = -28 + 84x

Solving
-21 + 9x = -28 + 84x

Solving for variable 'x'.

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

Add '-84x' to each side of the equation.
-21 + 9x + -84x = -28 + 84x + -84x

Combine like terms: 9x + -84x = -75x
-21 + -75x = -28 + 84x + -84x

Combine like terms: 84x + -84x = 0
-21 + -75x = -28 + 0
-21 + -75x = -28

Add '21' to each side of the equation.
-21 + 21 + -75x = -28 + 21

Combine like terms: -21 + 21 = 0
0 + -75x = -28 + 21
-75x = -28 + 21

Combine like terms: -28 + 21 = -7
-75x = -7

Divide each side by '-75'.
x = 0.09333333333

Simplifying
x = 0.09333333333

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