3x-13=-7+15

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


Simplifying
3x + -13 = -7 + 15

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

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

Solving
-13 + 3x = 8

Solving for variable 'x'.

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

Add '13' to each side of the equation.
-13 + 13 + 3x = 8 + 13

Combine like terms: -13 + 13 = 0
0 + 3x = 8 + 13
3x = 8 + 13

Combine like terms: 8 + 13 = 21
3x = 21

Divide each side by '3'.
x = 7

Simplifying
x = 7

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