4x-12-6x+21=-1

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Solution for 4x-12-6x+21=-1 equation:


Simplifying
4x + -12 + -6x + 21 = -1

Reorder the terms:
-12 + 21 + 4x + -6x = -1

Combine like terms: -12 + 21 = 9
9 + 4x + -6x = -1

Combine like terms: 4x + -6x = -2x
9 + -2x = -1

Solving
9 + -2x = -1

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 + -2x = -1 + -9

Combine like terms: 9 + -9 = 0
0 + -2x = -1 + -9
-2x = -1 + -9

Combine like terms: -1 + -9 = -10
-2x = -10

Divide each side by '-2'.
x = 5

Simplifying
x = 5

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