Question

Am nevoie de asta urgent!! Va multumesc

Answer 1

sper ca te am putut ajuta :)))

Answer 2

Explicație pas cu pas:

a) x=40÷10

x=4

10×4=40

b)x= -(21÷7)

x=-3

(-7)×(-3)=21 Adevarat

c)x=48÷16

x=3

16×3=48 adevarat

d)9x=-27

x=(-27)÷9

x=-3

9×(-3)+27=0 adevarat

-27+27=0

e) -3x=-15

x= (-15)÷(-3)

x=5

(-3)×5+15=0

-15+15=0 adevarat

f)2x=7-3

2x=4

x=2

3=(-2)×2+7

3=-4+7

3=3 adevarat

g)22x=-44

x=(-44)÷22

x=-2

22×(-2)+44=0

-44+44=0 adevarat

h)11x=95-29

11x=66

x= 66÷11

x=6

(11×6)+29=95

66+29=95

i)6x=6+18

6x=24

x=24÷6

x=4

-18+(6×4)=6

-18+24=6 adevarat

j)-x=-23-7

-x=-30

x=30

-30+7=-23 adevarat

k)4x-28=0

4x=28

x=28÷4

x=7

4(7-7)=0

4×0=0 adevarat

l)-3x-18=6

-3x=6+18

-3x=24

x=24÷(-3)

x=-8

(-3)(-8+6)=6

(-3)×(-2)=6

6=6 adevarat