Question

Resolva as equações, sendo U=Q

1) x+5=12
2) x-3=67
3) 2x=4
4) x-7=14
5) 3x=21
6) 2x-4=16
7) x=4-4
8) x+4= -6
9) 4x+4=-10
10) 3x -5=4


quem poder me ajudar ai :)

Answer 1

__________

A)

x + 5 = 12

x = 12 - 5

x = 7

R) x = 7

_

B)

x - 3 = 67

x = 67 + 3

x = 70

R) x = 70

_

C)

2x = 4

x = 4/2

x = 2

R) x = 2

_

D)

x - 7 = 14

x = 14 + 7

x = 21

R) x = 21

_

E)

3x = 21

x = 21/3

x = 7

R) x = 7

_

F)

2x - 4 = 16

2x = 16 + 4

2x = 20

x = 10

R) x = 10

_

G)

x = 4 - 4

x = 0

R) x = 0

_

H)

x + 4 = -6

x = -6 - 4

x = -10

R) x = -10

_

I)

4x + 4 = -10

4x = -10 - 4

4x = -14

x = -14/4

x = -7/2

R) x = -7/2

_

J)

3x - 5 = 4

3x = 5 + 4

3x = 9

x = 3

R) x = 3

___________

Att: MarcosPCV

Answer 2

Resposta:

1) 12 - 5 = 7

7 + 5 = 12

2) 70 - 3 = 67

3) 4÷2=2

2x2=4

4) 21-7=14

5) 7×3=2q

6) 16+4=20. 20÷2=10

10×2-4=16

7) x=0

8) -6-4= -10

-10+4= -6

9) -10+4= -6. -6÷2= -3

-3×4+4= -10