Question

Resolva as equaçoes. A)2(x+½)=13 b)x=½(x-1)

Answer 1

a)2(x+1/2)=13; 2x+2.1/2= 13; 2x+2/2=13; 2x+1=13; 2x= 13-1; 2x=12; x= 12/2; x=6; b)x= 1/2(x-1); x= 1/2x - 1/2; x - 1/2 x = -1/2; (2x-1)/2 = -1/2; 2x-1= -1; 2x= -1+1; 2x=0; x= 0/2; x=0