Question

4. Află numerele necunoscute:
a. x+264 = 517
c. 9xx=72
b. 90: x = 10
x: 8=65
x-364 = 517
x x 7 = 63

Answer 1

Răspuns:

a.x=517-264

x=253

b.x=90:10

x=9

c.xx=x8

d.x=520

e.x=881

f.xx=9x

Answer 2

a. x+264=517
x=517-264
x= 253

B. 90:x=10
x=90:10
x=9

C. 9xx=72
x=72:9
x=8

X:8=65
x=65x8
x=520


x-364=517
x=517+364
x=881

xx7=63
x=63:7
x=9