-5(3-4a)=20

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Solution for -5(3-4a)=20 equation: 


Simplifying
-5(3 + -4a) = 20
(3 * -5 + -4a * -5) = 20
(-15 + 20a) = 20

Solving
-15 + 20a = 20

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 + 20a = 20 + 15

Combine like terms: -15 + 15 = 0
0 + 20a = 20 + 15
20a = 20 + 15

Combine like terms: 20 + 15 = 35
20a = 35

Divide each side by '20'.
a = 1.75

Simplifying
a = 1.75

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