24+3x+54-6x-21x=12

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Solution for 24+3x+54-6x-21x=12 equation:


Simplifying
24 + 3x + 54 + -6x + -21x = 12

Reorder the terms:
24 + 54 + 3x + -6x + -21x = 12

Combine like terms: 24 + 54 = 78
78 + 3x + -6x + -21x = 12

Combine like terms: 3x + -6x = -3x
78 + -3x + -21x = 12

Combine like terms: -3x + -21x = -24x
78 + -24x = 12

Solving
78 + -24x = 12

Solving for variable 'x'.

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

Add '-78' to each side of the equation.
78 + -78 + -24x = 12 + -78

Combine like terms: 78 + -78 = 0
0 + -24x = 12 + -78
-24x = 12 + -78

Combine like terms: 12 + -78 = -66
-24x = -66

Divide each side by '-24'.
x = 2.75

Simplifying
x = 2.75

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