Question

a) x/3=8/12 b) 2,1/7=x/10 c) 2/15=3/2x d) x+6/x-6=2/3 e) 1/5=x-1,5/x+1,5 f)3/4/1/3=1/2/x

Answer 1

A =×/3 = 8/ 12
A = 4x = 8/12
A = 4x = 8
X = 8/4
x= 2

B = 2,1 = x/ 10
21=7x
-7= 21 (-1 )
7x =-21
X =-21/7
X = -3

C = 2/15 =3/2x
4x =45
X = 45/4
X = 11.25