Question

Afla necunoscutul : 35:(x+1)=7 ; 72:(a:3)=8

Answer 1

1. x+1=7×35
    x+1=245
    x=245-1
    x=244
2. a:3=72×8
    a:3=576
    a=576:3
    a=192

Answer 2

35:(x+1) = 7
x+1 = 35 : 7
x + 1 = 5
x = 5 - 1
x = 4

72:(a:3) = 8
a : 3 = 72 : 8
a : 3 = 9
a = 9 × 3
a = 27