3(X+2)-(X-1)=8

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Solution for 3(X+2)-(X-1)=8 equation: 


Simplifying
3(X + 2) + -1(X + -1) = 8

Reorder the terms:
3(2 + X) + -1(X + -1) = 8
(2 * 3 + X * 3) + -1(X + -1) = 8
(6 + 3X) + -1(X + -1) = 8

Reorder the terms:
6 + 3X + -1(-1 + X) = 8
6 + 3X + (-1 * -1 + X * -1) = 8
6 + 3X + (1 + -1X) = 8

Reorder the terms:
6 + 1 + 3X + -1X = 8

Combine like terms: 6 + 1 = 7
7 + 3X + -1X = 8

Combine like terms: 3X + -1X = 2X
7 + 2X = 8

Solving
7 + 2X = 8

Solving for variable 'X'.

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

Add '-7' to each side of the equation.
7 + -7 + 2X = 8 + -7

Combine like terms: 7 + -7 = 0
0 + 2X = 8 + -7
2X = 8 + -7

Combine like terms: 8 + -7 = 1
2X = 1

Divide each side by '2'.
X = 0.5

Simplifying
X = 0.5

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