Question

第一道：6.1X-12=1.9X+11.1

Answer 1

6.1x-12=1.9x+11.1

6.1x-1.9x=11.1+12

4.2x=23.1

x=23.1/4.2=5.5

2(0.5-x)+6=3x-2.5

1-2x+6=3x-2.5

-5x=-9.5

x=1.9