-15=3x+6(x+5)

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Solution for -15=3x+6(x+5) equation:


Simplifying
-15 = 3x + 6(x + 5)

Reorder the terms:
-15 = 3x + 6(5 + x)
-15 = 3x + (5 * 6 + x * 6)
-15 = 3x + (30 + 6x)

Reorder the terms:
-15 = 30 + 3x + 6x

Combine like terms: 3x + 6x = 9x
-15 = 30 + 9x

Solving
-15 = 30 + 9x

Solving for variable 'x'.

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

Add '-9x' to each side of the equation.
-15 + -9x = 30 + 9x + -9x

Combine like terms: 9x + -9x = 0
-15 + -9x = 30 + 0
-15 + -9x = 30

Add '15' to each side of the equation.
-15 + 15 + -9x = 30 + 15

Combine like terms: -15 + 15 = 0
0 + -9x = 30 + 15
-9x = 30 + 15

Combine like terms: 30 + 15 = 45
-9x = 45

Divide each side by '-9'.
x = -5

Simplifying
x = -5

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