Question

29)resolva as equações a)12x+3(x-6)=8x-24 b)m+2-5(m+1)=49-2(m-2) c)0,5b+4=10-0,2b d)3x+15/2+x/6=8+x

Answer 1

ESPERO AJUDAR!!

Explicação passo-a-passo:

(A) 12x+3x-18=8x-24

15x-8x=-24+18

6x=-6

x= -6/6

x= -1

(B) m+2-5(m+1)=49-2(m-2)

m+2-5m+5=49-2m-4

-4m+2m=49-4-5-2

-2m=38

m=38/-2

m=-19

(C) 0,5b+4=-10-0,2b

0,5b+0,2b=-10-4

0,7b=-14

b=-14/0,7

b=-20