2(5a-10)=20

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Solution for 2(5a-10)=20 equation: 


Simplifying
2(5a + -10) = 20

Reorder the terms:
2(-10 + 5a) = 20
(-10 * 2 + 5a * 2) = 20
(-20 + 10a) = 20

Solving
-20 + 10a = 20

Solving for variable 'a'.

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

Add '20' to each side of the equation.
-20 + 20 + 10a = 20 + 20

Combine like terms: -20 + 20 = 0
0 + 10a = 20 + 20
10a = 20 + 20

Combine like terms: 20 + 20 = 40
10a = 40

Divide each side by '10'.
a = 4

Simplifying
a = 4

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