7x-13+15-3x-4=8

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Solution for 7x-13+15-3x-4=8 equation:


Simplifying
7x + -13 + 15 + -3x + -4 = 8

Reorder the terms:
-13 + 15 + -4 + 7x + -3x = 8

Combine like terms: -13 + 15 = 2
2 + -4 + 7x + -3x = 8

Combine like terms: 2 + -4 = -2
-2 + 7x + -3x = 8

Combine like terms: 7x + -3x = 4x
-2 + 4x = 8

Solving
-2 + 4x = 8

Solving for variable 'x'.

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

Add '2' to each side of the equation.
-2 + 2 + 4x = 8 + 2

Combine like terms: -2 + 2 = 0
0 + 4x = 8 + 2
4x = 8 + 2

Combine like terms: 8 + 2 = 10
4x = 10

Divide each side by '4'.
x = 2.5

Simplifying
x = 2.5

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