Question

resolva as equaçoes a)x-5+=3 b)2x+10=16 c)3x-27=27 e) -30+2x=-25 f)105+x=72 g)5x-2.(x-7) -6=17 h)-(8x-1)+6.(3x-10)=31

Answer 1

Resposta:

Explicação passo-a-passo:

a)x-5=3

x=3+5

x=8

b)2x+10=16

2x=16-10

x=6/2

x=3

c)3x-27=27

3x=27+27

x=54/3

x=18

e)-30+2x=-25

2x=-25+30

x=5/2

f)105+x=72

x=72-105

x=-33

g)5x-2.(x-7)-6=17

5x-2x+14-6=17

3x=17+6-14

3x=9

x=9/3

x=3

h)-(8x-1)+6.(3x-10)=31

-8x+1+18x-60=31

10x=31-1

x=30/10

x=3