1x+7+8=2x-4

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Solution for 1x+7+8=2x-4 equation:


Simplifying
1x + 7 + 8 = 2x + -4

Reorder the terms:
7 + 8 + 1x = 2x + -4

Combine like terms: 7 + 8 = 15
15 + 1x = 2x + -4

Reorder the terms:
15 + 1x = -4 + 2x

Solving
15 + 1x = -4 + 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.
15 + 1x + -2x = -4 + 2x + -2x

Combine like terms: 1x + -2x = -1x
15 + -1x = -4 + 2x + -2x

Combine like terms: 2x + -2x = 0
15 + -1x = -4 + 0
15 + -1x = -4

Add '-15' to each side of the equation.
15 + -15 + -1x = -4 + -15

Combine like terms: 15 + -15 = 0
0 + -1x = -4 + -15
-1x = -4 + -15

Combine like terms: -4 + -15 = -19
-1x = -19

Divide each side by '-1'.
x = 19

Simplifying
x = 19

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