80=-6x-5(-3x-7)

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Solution for 80=-6x-5(-3x-7) equation:


Simplifying
80 = -6x + -5(-3x + -7)

Reorder the terms:
80 = -6x + -5(-7 + -3x)
80 = -6x + (-7 * -5 + -3x * -5)
80 = -6x + (35 + 15x)

Reorder the terms:
80 = 35 + -6x + 15x

Combine like terms: -6x + 15x = 9x
80 = 35 + 9x

Solving
80 = 35 + 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.
80 + -9x = 35 + 9x + -9x

Combine like terms: 9x + -9x = 0
80 + -9x = 35 + 0
80 + -9x = 35

Add '-80' to each side of the equation.
80 + -80 + -9x = 35 + -80

Combine like terms: 80 + -80 = 0
0 + -9x = 35 + -80
-9x = 35 + -80

Combine like terms: 35 + -80 = -45
-9x = -45

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

Simplifying
x = 5

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