5(1-2a)=-20-5a

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Solution for 5(1-2a)=-20-5a equation:


Simplifying
5(1 + -2a) = -20 + -5a
(1 * 5 + -2a * 5) = -20 + -5a
(5 + -10a) = -20 + -5a

Solving
5 + -10a = -20 + -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.
5 + -10a + 5a = -20 + -5a + 5a

Combine like terms: -10a + 5a = -5a
5 + -5a = -20 + -5a + 5a

Combine like terms: -5a + 5a = 0
5 + -5a = -20 + 0
5 + -5a = -20

Add '-5' to each side of the equation.
5 + -5 + -5a = -20 + -5

Combine like terms: 5 + -5 = 0
0 + -5a = -20 + -5
-5a = -20 + -5

Combine like terms: -20 + -5 = -25
-5a = -25

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

Simplifying
a = 5

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