Question

a)×-12=5 b)m+9=3 c)z-1=-12 g)2n-6=14-3n h)4(×+3)=20 com as contas por favor ​

Answer 1

a) x - 12 = 5

x = 5 + 12

x = 17

b) m + 9 = 3

m = 3 - 9

m = - 6

c) z - 1 = - 12

z = - 12 + 1

z = - 11

g) 2n - 6 = 14 - 3n

2n + 3n = 14 + 6

5n = 20

n = 20

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5

n = 4

h) 4(x + 3) = 20

4x + 12 = 20

4x = 20 - 12

4x = 8

x = 8

---

4

x = 2

Answer 2

Resposta:

a)×=17

b)m=-6

c)z=-11

g)n=4

h)×=2

Explicação passo a passo:

a)×-12=5

×=5+12

×=17

b)m+9=3

m=3-9

m=-(9-3)

m=-(6)

m=-6

c)z-1=-12

z=-12+1

z=-(12-1)

z=-(11)

z=-11

g)2n-6=14-3n

2n=14+6-3n

2n=20-3n

2n+3n=20

5n=20

n=20/5

n=4

h)4(×+3)=20

4×+12=20

4×=20-12

4×=8

×=8/4

×=2