Question

A)resolva as equações
a)2×+500×+800
b)-3×+16=-8
c)5×-20=65

Answer 1

2x+500x= -800
502x=-800
x=- 800/502
x=- 400/251

b) -3x+16=-8
-3x= -8-16
-3x= -24
x= -24/-3= 8

c) 5x-20=65
5x= 65+20
5x= 85
x= 85/5= 17