-3(x+7)-10=15

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Solution for -3(x+7)-10=15 equation:


Simplifying
-3(x + 7) + -10 = 15

Reorder the terms:
-3(7 + x) + -10 = 15
(7 * -3 + x * -3) + -10 = 15
(-21 + -3x) + -10 = 15

Reorder the terms:
-21 + -10 + -3x = 15

Combine like terms: -21 + -10 = -31
-31 + -3x = 15

Solving
-31 + -3x = 15

Solving for variable 'x'.

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

Add '31' to each side of the equation.
-31 + 31 + -3x = 15 + 31

Combine like terms: -31 + 31 = 0
0 + -3x = 15 + 31
-3x = 15 + 31

Combine like terms: 15 + 31 = 46
-3x = 46

Divide each side by '-3'.
x = -15.33333333

Simplifying
x = -15.33333333

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