-9-(-5-3x)=21

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Solution for -9-(-5-3x)=21 equation:


Simplifying
-9 + -1(-5 + -3x) = 21
-9 + (-5 * -1 + -3x * -1) = 21
-9 + (5 + 3x) = 21

Combine like terms: -9 + 5 = -4
-4 + 3x = 21

Solving
-4 + 3x = 21

Solving for variable 'x'.

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

Add '4' to each side of the equation.
-4 + 4 + 3x = 21 + 4

Combine like terms: -4 + 4 = 0
0 + 3x = 21 + 4
3x = 21 + 4

Combine like terms: 21 + 4 = 25
3x = 25

Divide each side by '3'.
x = 8.333333333

Simplifying
x = 8.333333333

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