a+b+2c=90

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Solution for a+b+2c=90 equation:


Simplifying
a + b + 2c = 90

Solving
a + b + 2c = 90

Solving for variable 'a'.

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

Add '-1b' to each side of the equation.
a + b + -1b + 2c = 90 + -1b

Combine like terms: b + -1b = 0
a + 0 + 2c = 90 + -1b
a + 2c = 90 + -1b

Add '-2c' to each side of the equation.
a + 2c + -2c = 90 + -1b + -2c

Combine like terms: 2c + -2c = 0
a + 0 = 90 + -1b + -2c
a = 90 + -1b + -2c

Simplifying
a = 90 + -1b + -2c

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