Question

RESOLVA AS EQUAÇOES A)40H - 1 = 79 B)9x - 4x + 10 = 7x - 30 C)18x - 43 = 65

Answer 1

Resposta:

a) 2

b) 20

c) 6

Explicação passo-a-passo:

a) 40h -1= 79

40h= 79+1

40h=80

h=80/40

h= 2

b) 9x-4x+10=7x-30

9x-4x-7x=-30-10

-2x=-40

x= -40/-2

x= 20

c) 18x-43=65

18x= 65+43

18x= 108

x= 108/18

x=6