X+X-4=-2-7

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Solution for X+X-4=-2-7 equation:


Simplifying
X + X + -4 = -2 + -7

Reorder the terms:
-4 + X + X = -2 + -7

Combine like terms: X + X = 2X
-4 + 2X = -2 + -7

Combine like terms: -2 + -7 = -9
-4 + 2X = -9

Solving
-4 + 2X = -9

Solving for variable 'X'.

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

Add '4' to each side of the equation.
-4 + 4 + 2X = -9 + 4

Combine like terms: -4 + 4 = 0
0 + 2X = -9 + 4
2X = -9 + 4

Combine like terms: -9 + 4 = -5
2X = -5

Divide each side by '2'.
X = -2.5

Simplifying
X = -2.5

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