Question

0.4*(x-3)=0.5*(4+x)-2.5

Answer 1

0.4x-1.2=2+0.5x-2.5
0.4x-0.5x=-0.5+1.2
-0.1x=0.7
x=-7

Answer 2

0,4х-1,2=2+0,5х-2,5
0,4х-0,5х=2-2,5+1,2
-0,1х=0,7
х=0,7/-0,1
х=-7