Question

Va rog eu dau multe puncte si coroana!
ex 38 plss​

Answer 1

Răspuns:

a)3*6=2*x

18=2*x

x=18:2

x=9

b)14*9=2*x

126=2*x

x=126:2

x=63

c)15*72=12*x

1080=12*x

x=1080:12

x=90

d)x*13=65*24

x*13=1560

x=1560:13

x=120

e)80*15=x*16

1200=x*16

x=1200:16

x=75

f)5*x=90*7

5x=630

x=630:5

x=126

g)15*x=105*19

15x=1995

x=1995:15

x=133

h)5*124=x*4

4x=620

x=620:4

x=155

i)16x=25*144

16x=3600

x=3600:16

x=225

j)180*8=x*5

5x=1440

x=1440:5

x=288

k)

$\frac{ \times - 1}{8} = \frac{3}{4}$

4*x-1=3*8

4*x-1=24

x-1=24:4

x-1=6

x=6+1

x=7

l)

$\frac{12}{ \times + 2} = \frac{3}{2}$

3*x+2=12*2

3x+2=24

x+2=24:3

x+2=8

x=8-2

x=6

Sper ca te-am ajutat!Coroana?