Question

revolvati ecuatiile in multimea indicata 1+2/3•x=1,5+1/6•x,x e Q+. b) 0,5x+2/9=3,(5)-1/2x;x e Q+. c) 5/3•(x+2)=10,(3); x e Q+. d)2:(x-1,5)=1/4,x e Q+. e)1/3:(2x-1)=2,x rQ+. f)5/4•(x-3,1)=15/8,x e Q+

Answer 1

a) 6/6 + 4x/6 = 9/6 + 1x/6   6+4x=9+1x    4x-1x=6-9    3x=-3   x= 1

b) 18x/90 +20/90=320/9-45x/90   18x+20=320-45x   18x-45x=320-20   27x=300  x = 300/27 x = 100/9

c) 5/3 * (x+2) = 97    5x/3+10/3 = 97   5x+10= 291  5x=291-10  5x=281  x=281/5

d) 2:(x-3/2)=1/4    4:4x-6=4   4:4x=10  4x=40  x=10