Question

resolva as equações

A)18x-43=65
b)23x-16=14-17x
c)10y-5(1+4)=3(2y-2)-20​

Answer 1

A)18x-43=65

18x = 65 + 43

18x = 108

x= 108/18

x= 6

b)23x-16=14-17x

23x + 17x = 14 + 16

40x = 30

x= 30/40 (÷10)

x= 3/4

c)10y-5(1+4)=3(2y-2)-20

10y - 5 - 20 = 6y - 6 - 20

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

4y = - 26 + 25

4y = - 1

y= - 1/4