Question

Resolva as equações do primeiro grau
a) k + 10= 6
B)5m - 12 = 13
C) 5a - 5=2a + 13
D) 10b + 4 = 3b + 32
E) x + 3 = 7B
5
F) 9x = -108


Me ajuda

Answer 1

a)

k+10=6

k=6-10

k=-4

b)5m-12=13

5m=13+12

5m=25

m=25/5

m=5

c)5a-5=2a+13

5a-2a=13+5

3a=18

a=18/3

a=6

d)10b+4=3b+32

10b-3b=32-4

7b=28

b=28/7

b=4

e)9x=-108

x=-108/9

x=-12

Answer 2

Resposta:

a)k=6-10

k=-4

b)5m=13+12

5m=25

m=25/5

m=5

c)5a-2a=13+5

3a=18

a=18/6

a=3

d)10b-3b=32-4

7b=28

b=28/7

b=4

e)x+3=-7x-5

x+7x=-5-3

8x=-8

x=-8/8

x=-1

f)x=-108/9

x=-12