# Maths

Question asked by: felly boy

Asked on: 05 Mar 2009

A+b=40

b+c=35

a+b+c=100

You need to substitute in to answer this one.

We know that a + 35 = 100, so a = 65

a + b = 40, so 65 + b = 40, so b = -25

b + c = 35, so - 25 + c = 35, so c = 60

check: a + b + c = 100, and 65 - 25 + 60 = 100 so we are correct.

By: knowitall

Replied at: 11 Mar 2009

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