a+2(100)=180

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Solution for a+2(100)=180 equation: 


Simplifying
a + 2(100) = 180

Multiply 2 * 100
a + 200 = 180

Reorder the terms:
200 + a = 180

Solving
200 + a = 180

Solving for variable 'a'.

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

Add '-200' to each side of the equation.
200 + -200 + a = 180 + -200

Combine like terms: 200 + -200 = 0
0 + a = 180 + -200
a = 180 + -200

Combine like terms: 180 + -200 = -20
a = -20

Simplifying
a = -20

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