-5x-(X-3)=21

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


Simplifying
-5x + -1(X + -3) = 21

Reorder the terms:
-5x + -1(-3 + X) = 21
-5x + (-3 * -1 + X * -1) = 21
-5x + (3 + -1X) = 21

Reorder the terms:
3 + -1X + -5x = 21

Solving
3 + -1X + -5x = 21

Solving for variable 'X'.

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

Add '-3' to each side of the equation.
3 + -1X + -3 + -5x = 21 + -3

Reorder the terms:
3 + -3 + -1X + -5x = 21 + -3

Combine like terms: 3 + -3 = 0
0 + -1X + -5x = 21 + -3
-1X + -5x = 21 + -3

Combine like terms: 21 + -3 = 18
-1X + -5x = 18

Add '5x' to each side of the equation.
-1X + -5x + 5x = 18 + 5x

Combine like terms: -5x + 5x = 0
-1X + 0 = 18 + 5x
-1X = 18 + 5x

Divide each side by '-1'.
X = -18 + -5x

Simplifying
X = -18 + -5x

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