Question

z - 4 = 3
z - 7 = -7
z + 9 = -1
z + 28 = 11
x - 109 = 5
x - 39 = -79
10 = x + 8
15 = x +20
4 = x - 10
7 = x + 8
0 = x +12
-3 = x + 10
alguem me helpa pfv
se possivel armar e calcular ;-;

Answer 1

Resposta:

z=7

z=0

z=-10

z=-17

x=114

x=-40

×=-2

×=-5

×=14

×=-1

×=-12

×=13

Explicação passo-a-passo:

z-4=3

z= 3+4

z= 7

z-7= -7

z= -7+7

z= 0

z+9=-1

z= -1-9

z=-10

z+28=11

z= 11- 28

z= -17

x-109=5

×= 5+ 109

×= 114

x-39=-79

×= -79+ 39

x= -40

10=×+8

-×=8-10

-×=2 (×-1)

x= -2

15=×+20

-×=20-15

-×=5(×-1)

x=-5

4=×-10

-×=-10-4

-×= -14(×-1)

x= 14

7=x+8

-×=8-7

-×= 1(×-1)

×=-1

0=x+12

-x= 12 -0

-x=12(×-1)

×=-12

-3=×+10

-x= 10 +3

-x= 13(×-1)

×=-13