2(42-a)=48

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Solution for 2(42-a)=48 equation:


Simplifying
2(42 + -1a) = 48
(42 * 2 + -1a * 2) = 48
(84 + -2a) = 48

Solving
84 + -2a = 48

Solving for variable 'a'.

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

Add '-84' to each side of the equation.
84 + -84 + -2a = 48 + -84

Combine like terms: 84 + -84 = 0
0 + -2a = 48 + -84
-2a = 48 + -84

Combine like terms: 48 + -84 = -36
-2a = -36

Divide each side by '-2'.
a = 18

Simplifying
a = 18

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