Question

Resolva as equações: a) 32x+5=1 b) c) 72x+1=0 d) 13x+6=12 e) 32x−4=−9

Answer 1

a) 32x+5=1
32x+5-5=1-5
32x=1-5
32x=-(5-1)
32x=-4
32x÷32=-4÷32
x=-4/32∉
x=-1/8

c) 72x+1=0
72x+1=0-1
72x÷72=-1÷72
x=-1÷72
x=-1/27

d) 13x+6=12 
13x+6-6=12-6
13x=12-6
13x=6
13x÷13=6÷13
x=6/13

e) 32x−4=−9
32x-4+4=-9+4
32x=-9+4
32x=-(9-4)
32x=-5
32x÷32=-5÷32
x=-5/32