a. if x/5 = 5 then, x =
b. if 4:5 = x : 20 , then x
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Step-by-step explanation:
a. x/5 = 5
= x= 5*5
=x= 25
b.4:5 = x:20
= cross multiplication
= 5x = 4*20
= x = 80/5
= x= 16
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