Question

Determinati nr natural x pentru care a)72:x=9;b)x:5+13=23;c)231:11=x+7;d)1:x=x;e)x:8=5;f)36:x+11=15;g)2x:8=5; h)x:13=14 va roggggg e urgent dau coroana

Answer 1

a)x=72:9 =>x=8
b)x:5=23-13 ; x:5=10 =>x=50
c)21=x+7 =>x=14
d)1:x=x =>1=x² =>x=1 sau x=(-1)
e)x=8·5 =>x=40
f)36:x=4 =>x=36:4 =>x=9
g)2x=8·5 ; 2x=40 =>x=20
h)x=13·14 =>x=182

Answer 2

a)72:x=9
x=72:9
x=8

b)x:5+13=23
x:5=23-13
x:5=10
x=10x5
x=50

c)2310:11=x+7
210=x+7
x=210-7
x=203

d)1:x=x  ????


e)x:8=5
x=5x8
x=40

f)36:x+11=15
36:x=15-11
36:x=4
x=36:4
x=9

g)2x:8=5
2x=5x8
2x=40
x=40:2
x=20

h)x:13=14
x=13x14
x=182