72X+84-72+(-3X)=21+(-17)-2+18x

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Solution for 72X+84-72+(-3X)=21+(-17)-2+18x equation: 


Simplifying
72X + 84 + -72 + (-3X) = 21 + (-17) + -2 + 18x

Reorder the terms:
84 + -72 + 72X + (-3X) = 21 + (-17) + -2 + 18x

Combine like terms: 84 + -72 = 12
12 + 72X + (-3X) = 21 + (-17) + -2 + 18x

Combine like terms: 72X + (-3X) = 69X
12 + 69X = 21 + (-17) + -2 + 18x
12 + 69X = 21 + -17 + -2 + 18x

Combine like terms: 21 + -17 = 4
12 + 69X = 4 + -2 + 18x

Combine like terms: 4 + -2 = 2
12 + 69X = 2 + 18x

Solving
12 + 69X = 2 + 18x

Solving for variable 'X'.

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

Add '-12' to each side of the equation.
12 + -12 + 69X = 2 + -12 + 18x

Combine like terms: 12 + -12 = 0
0 + 69X = 2 + -12 + 18x
69X = 2 + -12 + 18x

Combine like terms: 2 + -12 = -10
69X = -10 + 18x

Divide each side by '69'.
X = -0.1449275362 + 0.2608695652x

Simplifying
X = -0.1449275362 + 0.2608695652x

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