-5(3-7a)=-85

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Solution for -5(3-7a)=-85 equation: 


Simplifying
-5(3 + -7a) = -85
(3 * -5 + -7a * -5) = -85
(-15 + 35a) = -85

Solving
-15 + 35a = -85

Solving for variable 'a'.

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

Add '15' to each side of the equation.
-15 + 15 + 35a = -85 + 15

Combine like terms: -15 + 15 = 0
0 + 35a = -85 + 15
35a = -85 + 15

Combine like terms: -85 + 15 = -70
35a = -70

Divide each side by '35'.
a = -2

Simplifying
a = -2

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