Question

0.7×(x-3)=0.5×(x+1)

Answer 1

0.7*(x-3)=0.5*(x+1)
0.7x-2.1=0.5x+0.5
0.7x-0.5x=0.5+2.1
0.2x=2.6
x=2.6/0.2
x=13