Question

Determinati numărul natural x pentru care
c) x:4+83=89
d) 151+81:x=154
e)880:x+19=39
f)x:10+39=139

Answer 1

X:4=89-83||x:4=6||X=6x4=24 81:x=154-151|||81:X=3|||x=81:3=17 X=20,X=1000

Answer 2

c. x:4= 83+ 89
x:4= 172
x= 172 × 4
x= 688

d. 81:x = 151 + 154
    81:x= 305
     x= 305 × 81
     x= 24705

e.880:x= 39-19
   880:x = 20
 x = 880 × 20
 x= 17600

f.  x:10= 139 - 39
   x:10 = 100
   x= 10×100
   x= 1000