(9-5x)=21

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Solution for (9-5x)=21 equation: 


Simplifying
(9 + -5x) = 21

Remove parenthesis around (9 + -5x)
9 + -5x = 21

Solving
9 + -5x = 21

Solving for variable 'x'.

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

Add '-9' to each side of the equation.
9 + -9 + -5x = 21 + -9

Combine like terms: 9 + -9 = 0
0 + -5x = 21 + -9
-5x = 21 + -9

Combine like terms: 21 + -9 = 12
-5x = 12

Divide each side by '-5'.
x = -2.4

Simplifying
x = -2.4

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