SOLUTION: 2a=8 a + b =2

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Question 562284: 2a=8
a + b =2
Answer by Maths68(1474) About Me  (Show Source):
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2a=8...........(1)
a%2Bb=2..........(2)

2a=8
Divide by 2 both sides of above equation
2a%2F2=8%2F2
cross%282%29a%2Fcross%282%29=cross%288%29%2Fcross%282%29
a=4
Put the value of a in (2)
a%2Bb=2
4%2Bb=2
b=2-4
b=-2
a,b=4,-2
Check
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Put the value of a and b in (2)
a%2Bb=2
4%2B%28-2%29=2
4-2=2
2=2