Question

7,24x+(2,6−12)=−13+2,6−2,76x

Answer 1

7,24x+(2,6−12)=−13+2,6−2,76x
7.24x-9.4=-10.4-2.76x
7.24x+2.76x=-10.4+9.4
  10x=-1   x=-1/10   x=-0.1