Question

equações de 1º grau

a)18x-43=65

b)23x-16= 14-17x

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

d)x(x+4)+x(x+2)=2x²+12

e)(x-5)/10 + (1-2x)/5= (3-x)/4

f)4x(x+6)-x² =5x²

Answer 1

a) 18x-43=65
18x=65+43
x=108/18
x= 6

b) 23x-16=14-17x
23x+17x=14+16
40x=30
x= 30/40
x= 0,75