Question

resolva as equaçoes de 1 grau
a)18x-43=6
b)23x-16=14-17x
c)10y-5(1+y)=3(2y-2)-20

Answer 1

a) 18x=6+43 
x= 49/18 
b)23x+17x=14+16
40x=20 
x=1/2
C) 10y-5-5y=6y-6-20
5y-6y=-26+5
-y=-21 *(-1)
y=21