75=-5(a+5)

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Solution for 75=-5(a+5) equation: 


Simplifying
75 = -5(a + 5)

Reorder the terms:
75 = -5(5 + a)
75 = (5 * -5 + a * -5)
75 = (-25 + -5a)

Solving
75 = -25 + -5a

Solving for variable 'a'.

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

Add '5a' to each side of the equation.
75 + 5a = -25 + -5a + 5a

Combine like terms: -5a + 5a = 0
75 + 5a = -25 + 0
75 + 5a = -25

Add '-75' to each side of the equation.
75 + -75 + 5a = -25 + -75

Combine like terms: 75 + -75 = 0
0 + 5a = -25 + -75
5a = -25 + -75

Combine like terms: -25 + -75 = -100
5a = -100

Divide each side by '5'.
a = -20

Simplifying
a = -20

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