3X-2+0.5X+X=21-2+X

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Solution for 3X-2+0.5X+X=21-2+X equation: 


Simplifying
3X + -2 + 0.5X + X = 21 + -2 + X

Reorder the terms:
-2 + 3X + 0.5X + X = 21 + -2 + X

Combine like terms: 3X + 0.5X = 3.5X
-2 + 3.5X + X = 21 + -2 + X

Combine like terms: 3.5X + X = 4.5X
-2 + 4.5X = 21 + -2 + X

Combine like terms: 21 + -2 = 19
-2 + 4.5X = 19 + X

Solving
-2 + 4.5X = 19 + X

Solving for variable 'X'.

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

Add '-1X' to each side of the equation.
-2 + 4.5X + -1X = 19 + X + -1X

Combine like terms: 4.5X + -1X = 3.5X
-2 + 3.5X = 19 + X + -1X

Combine like terms: X + -1X = 0
-2 + 3.5X = 19 + 0
-2 + 3.5X = 19

Add '2' to each side of the equation.
-2 + 2 + 3.5X = 19 + 2

Combine like terms: -2 + 2 = 0
0 + 3.5X = 19 + 2
3.5X = 19 + 2

Combine like terms: 19 + 2 = 21
3.5X = 21

Divide each side by '3.5'.
X = 6

Simplifying
X = 6

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