Question

Resolva as equações a seguir:

A)18x - 43 = 65
B)23x - 16 = 14 - 17x
C) 10y - 5 (1 + y) = 3 (2y - 2) - 20

Answer 1

Resposta:

a) 18x=65+43

18=108

x= 108/18

x= 6

b)23x + 17x= 14 + 16

40x = 30

x= 30/40

x= 0,75

c) 10y - 5y - 6y= -6 -20 +5

-y= -19 ( x -1)

y=19