6x+3(x+7)=-15

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Solution for 6x+3(x+7)=-15 equation:


Simplifying
6x + 3(x + 7) = -15

Reorder the terms:
6x + 3(7 + x) = -15
6x + (7 * 3 + x * 3) = -15
6x + (21 + 3x) = -15

Reorder the terms:
21 + 6x + 3x = -15

Combine like terms: 6x + 3x = 9x
21 + 9x = -15

Solving
21 + 9x = -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 + 9x = -15 + -21

Combine like terms: 21 + -21 = 0
0 + 9x = -15 + -21
9x = -15 + -21

Combine like terms: -15 + -21 = -36
9x = -36

Divide each side by '9'.
x = -4

Simplifying
x = -4

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