-1=2X+8

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Solution for -1=2X+8 equation:


Simplifying
-1 = 2X + 8

Reorder the terms:
-1 = 8 + 2X

Solving
-1 = 8 + 2X

Solving for variable 'X'.

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

Add '-2X' to each side of the equation.
-1 + -2X = 8 + 2X + -2X

Combine like terms: 2X + -2X = 0
-1 + -2X = 8 + 0
-1 + -2X = 8

Add '1' to each side of the equation.
-1 + 1 + -2X = 8 + 1

Combine like terms: -1 + 1 = 0
0 + -2X = 8 + 1
-2X = 8 + 1

Combine like terms: 8 + 1 = 9
-2X = 9

Divide each side by '-2'.
X = -4.5

Simplifying
X = -4.5

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