Question

Ex 6 va rog va rog Urgent

Answer 1

6
a)
x:30=7
x=7x30
x=210
v: 210:30=7
7=7 (A)

420:x=60
420:60=x
x=7
v: 420:7=60
60=60(A)

b)
7xy=490
y=490:7
y=70
v: 7x70=490
490=490 (A)

yx8=432
y=432:8
y=54
v: 54x8=432
v: 432=422 (A)

c) z+250=900
z=900-250
z=650
v: 650+250=900
900=900(A)

825-z=600
825-600=z
225=z
v: 825-225=600
600=600(A)