Question

Determinati x astfel încat 28a=35b si a supra b=x supra 36

Answer 1

28a=35b⇒ a/b=35/28
a/b=x/36 ⇒ 35/28=x/36 ⇒ x= 35*36:28
x= 45

Answer 2

28a=35b=>a=35b/28=>a=5b/4
a/b=x/36
36 a= b*x
5b/4* 36=b*x
5b*9=b*x
45*b=b*x
x=45