9x-(84x+21)=

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Solution for 9x-(84x+21)= equation:


Simplifying
9x + -1(84x + 21) = 0

Reorder the terms:
9x + -1(21 + 84x) = 0
9x + (21 * -1 + 84x * -1) = 0
9x + (-21 + -84x) = 0

Reorder the terms:
-21 + 9x + -84x = 0

Combine like terms: 9x + -84x = -75x
-21 + -75x = 0

Solving
-21 + -75x = 0

Solving for variable 'x'.

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

Add '21' to each side of the equation.
-21 + 21 + -75x = 0 + 21

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

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

Divide each side by '-75'.
x = -0.28

Simplifying
x = -0.28

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