Question

rezolvati; 1} in multimiea m; 2}in multimiea z ? va reg cit mai repide a 3x-4=6-x : b 1-8x=x-5 c 3=y+-2y-60

Answer 1

3x-4=6-x
3x+x=6+4
4x=10=>x=10/4=>x=5/2

1-8x=x-5
-8x+x=-5+1
-7x=-4=>x=-4:-7=>x=4/7

3=y+(-2y)-60
3=y-2y-60
3+60=-y
63=-y=>y=-63