4X+12=-21+7X

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Solution for 4X+12=-21+7X equation:


Simplifying
4X + 12 = -21 + 7X

Reorder the terms:
12 + 4X = -21 + 7X

Solving
12 + 4X = -21 + 7X

Solving for variable 'X'.

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

Add '-7X' to each side of the equation.
12 + 4X + -7X = -21 + 7X + -7X

Combine like terms: 4X + -7X = -3X
12 + -3X = -21 + 7X + -7X

Combine like terms: 7X + -7X = 0
12 + -3X = -21 + 0
12 + -3X = -21

Add '-12' to each side of the equation.
12 + -12 + -3X = -21 + -12

Combine like terms: 12 + -12 = 0
0 + -3X = -21 + -12
-3X = -21 + -12

Combine like terms: -21 + -12 = -33
-3X = -33

Divide each side by '-3'.
X = 11

Simplifying
X = 11

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