21X+2-4=12X+2-12X+2

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Solution for 21X+2-4=12X+2-12X+2 equation: 


Simplifying
21X + 2 + -4 = 12X + 2 + -12X + 2

Reorder the terms:
2 + -4 + 21X = 12X + 2 + -12X + 2

Combine like terms: 2 + -4 = -2
-2 + 21X = 12X + 2 + -12X + 2

Reorder the terms:
-2 + 21X = 2 + 2 + 12X + -12X

Combine like terms: 2 + 2 = 4
-2 + 21X = 4 + 12X + -12X

Combine like terms: 12X + -12X = 0
-2 + 21X = 4 + 0
-2 + 21X = 4

Solving
-2 + 21X = 4

Solving for variable 'X'.

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

Add '2' to each side of the equation.
-2 + 2 + 21X = 4 + 2

Combine like terms: -2 + 2 = 0
0 + 21X = 4 + 2
21X = 4 + 2

Combine like terms: 4 + 2 = 6
21X = 6

Divide each side by '21'.
X = 0.2857142857

Simplifying
X = 0.2857142857

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