Question

Resolve as equações:A) x+2(x-0,80)=13,70 B) x+2x-8=37

Answer 1

A) x+2(x-0,80)=13,70 x + 2x - 1,60 = 13,70 3x = 13,70+ 1,60
 3x = 15,30
   x = 5,10

B) x+2x-8=37              3x = 37 + 8
             3x = 45
               x = 15

Answer 2

a) x +2 (x-0,80)=13,70
x + 2x - 1,6=13,70
3x = 13,70+1,6
3x=15,3
x=15,3/3
x=5,1

b)x+2x-8=37
3x=37+8
3x=45
x=45/3
x=15