Question

If a+2a+3a =6b-12 and if b = 2 then what is the value of a ?

Answer 1

6a=6b-12 a=b-6 a=2-6= -4

Answer 2

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a+2a+3a=6b-12

6a=6(2)-12

6a=12-12

6a=0

a=0/6

a=0

Thanks!!!