a+b+b+b+90=100

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Solution for a+b+b+b+90=100 equation:


Simplifying
a + b + b + b + 90 = 100

Reorder the terms:
90 + a + b + b + b = 100

Combine like terms: b + b = 2b
90 + a + 2b + b = 100

Combine like terms: 2b + b = 3b
90 + a + 3b = 100

Solving
90 + a + 3b = 100

Solving for variable 'a'.

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

Add '-90' to each side of the equation.
90 + a + -90 + 3b = 100 + -90

Reorder the terms:
90 + -90 + a + 3b = 100 + -90

Combine like terms: 90 + -90 = 0
0 + a + 3b = 100 + -90
a + 3b = 100 + -90

Combine like terms: 100 + -90 = 10
a + 3b = 10

Add '-3b' to each side of the equation.
a + 3b + -3b = 10 + -3b

Combine like terms: 3b + -3b = 0
a + 0 = 10 + -3b
a = 10 + -3b

Simplifying
a = 10 + -3b

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