Question

5(a+b)+(2a-b)=20 if (b= 2) find a

pls answer seriously

Answer 1

Answer:

If b=2,

5(a+2)+(2a-2)=20

5a+10+2a-2=20

7a+8=20

7a=20-8

a=12/7

a=1.71

Answer 2

b=2
5(a+b)+2a-b=20
5(a+2)+2a-2=20
5a+10+2a-2=20
7a+8=20
7a=20-8=12
a=12/7
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