2x-3(-x-7)=15

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Solution for 2x-3(-x-7)=15 equation:


Simplifying
2x + -3(-1x + -7) = 15

Reorder the terms:
2x + -3(-7 + -1x) = 15
2x + (-7 * -3 + -1x * -3) = 15
2x + (21 + 3x) = 15

Reorder the terms:
21 + 2x + 3x = 15

Combine like terms: 2x + 3x = 5x
21 + 5x = 15

Solving
21 + 5x = 15

Solving for variable 'x'.

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

Add '-21' to each side of the equation.
21 + -21 + 5x = 15 + -21

Combine like terms: 21 + -21 = 0
0 + 5x = 15 + -21
5x = 15 + -21

Combine like terms: 15 + -21 = -6
5x = -6

Divide each side by '5'.
x = -1.2

Simplifying
x = -1.2

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