Best Answer

a + b + c = 180

b = 3a

c = 5a

Substituting the values of b and c into the first equation.

a + 3a + 5a = 180 or 9a = 180 so that a = 20

then b = 3a = 3*20 = 60

and c = 5a = 5*20 = 100

Q: What is the answer to a plus b plus c equals 180 b equals 3a c equals 5a?

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a + 3a + 5a = 180 9a =180 a = 20

From your description, I get: a + b + c = 180b - 3a c = 5a You have two equations and three unknowns, which is unsolvable.

a = 20 b = 60 c = 100

Answer to: 5a + 1 = a - 3a = -1

Gathering like terms together, this can be rewritten: 9a = 180 Dividing both sides of the equation by 9: a = 20

If 3a+5=5a+3, then: 3a+5 - 3a = 5a+3 - 3a 5=2a+3 5 - 3=2a+3 - 3 2=2a a=1

2a + 3a + 4 = 5a + 4

12a

a is equal to 4

2a + 3a = 5a

13a - 6 + a = 5a + 3 + 3a 13a + a - 5a - 3a = 3 + 6 6a = 9 6a/6 = 9/6 a = 3/2

1a (or just a for short).