21-4x=-8+12x

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Solution for 21-4x=-8+12x equation:


Simplifying
21 + -4x = -8 + 12x

Solving
21 + -4x = -8 + 12x

Solving for variable 'x'.

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

Add '-12x' to each side of the equation.
21 + -4x + -12x = -8 + 12x + -12x

Combine like terms: -4x + -12x = -16x
21 + -16x = -8 + 12x + -12x

Combine like terms: 12x + -12x = 0
21 + -16x = -8 + 0
21 + -16x = -8

Add '-21' to each side of the equation.
21 + -21 + -16x = -8 + -21

Combine like terms: 21 + -21 = 0
0 + -16x = -8 + -21
-16x = -8 + -21

Combine like terms: -8 + -21 = -29
-16x = -29

Divide each side by '-16'.
x = 1.8125

Simplifying
x = 1.8125

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