Question

rezolva in multimea...............................

Answer 1

a) ×÷5=1

×=1×5

×=5

b) ×÷(-7)=2

×=2×7

×=14

c)×÷(-1)=4

×=4×1

×=4

d) ×÷19=0

×=0×19

×=0

e)×÷23=-1

×=-1×23

×=-23

f)8÷×=2

×=8÷2

×=4

g)1÷×=-1

×=-1×1

×=-1

h)2(×-1)=6

2×-2=6

2×=6+2

2×=8

×=8÷2

×=4

i)-3(-×+2)=-12

3×-6=-12

3×=-12+6

3×=-6

×=-6÷3

×=-2

j)×+2(×-3)=0

×+2×-6=0

3×-6=0

3×=6

×=6÷3

×=2

k)2×-(-4-3×)=9

2×+4+3×=9

5×=9-4

5×=5

×=5÷5

×=1
l)×+2×-3×=0
3×-3×=0
×=0
m)3(×+2)=-2(×+1)-17
3×+6=-2×-2-17
3×+2×=-2-17-6
5×=-25
×=-25÷5
×=-5
n)-5(4+3×)+8×-4=-2(×-3)
-20-15×+8×-4=-2×+6
-7×+2×=6+20+4
-5×=30
×=30÷(-5)
×=-6