-3x-(-21)+6x=60

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Solution for -3x-(-21)+6x=60 equation:


Simplifying
-3x + -1(-21) + 6x = 60

Multiply -1 * -21
-3x + 21 + 6x = 60

Reorder the terms:
21 + -3x + 6x = 60

Combine like terms: -3x + 6x = 3x
21 + 3x = 60

Solving
21 + 3x = 60

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 + 3x = 60 + -21

Combine like terms: 21 + -21 = 0
0 + 3x = 60 + -21
3x = 60 + -21

Combine like terms: 60 + -21 = 39
3x = 39

Divide each side by '3'.
x = 13

Simplifying
x = 13

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