45+a+b=180

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Solution for 45+a+b=180 equation:


Simplifying
45 + a + b = 180

Solving
45 + a + b = 180

Solving for variable 'a'.

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

Add '-45' to each side of the equation.
45 + a + -45 + b = 180 + -45

Reorder the terms:
45 + -45 + a + b = 180 + -45

Combine like terms: 45 + -45 = 0
0 + a + b = 180 + -45
a + b = 180 + -45

Combine like terms: 180 + -45 = 135
a + b = 135

Add '-1b' to each side of the equation.
a + b + -1b = 135 + -1b

Combine like terms: b + -1b = 0
a + 0 = 135 + -1b
a = 135 + -1b

Simplifying
a = 135 + -1b

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