2(a-40)=40

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Solution for 2(a-40)=40 equation: 


Simplifying
2(a + -40) = 40

Reorder the terms:
2(-40 + a) = 40
(-40 * 2 + a * 2) = 40
(-80 + 2a) = 40

Solving
-80 + 2a = 40

Solving for variable 'a'.

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

Add '80' to each side of the equation.
-80 + 80 + 2a = 40 + 80

Combine like terms: -80 + 80 = 0
0 + 2a = 40 + 80
2a = 40 + 80

Combine like terms: 40 + 80 = 120
2a = 120

Divide each side by '2'.
a = 60

Simplifying
a = 60

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