180=40+2a

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Solution for 180=40+2a equation:


Simplifying
180 = 40 + 2a

Solving
180 = 40 + 2a

Solving for variable 'a'.

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

Add '-2a' to each side of the equation.
180 + -2a = 40 + 2a + -2a

Combine like terms: 2a + -2a = 0
180 + -2a = 40 + 0
180 + -2a = 40

Add '-180' to each side of the equation.
180 + -180 + -2a = 40 + -180

Combine like terms: 180 + -180 = 0
0 + -2a = 40 + -180
-2a = 40 + -180

Combine like terms: 40 + -180 = -140
-2a = -140

Divide each side by '-2'.
a = 70

Simplifying
a = 70

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