Question 24159
0.2(s+0.2)+0.5(s-0.4)=5.44

In order to remove the brackets,we multiply each term inside the brackets with the term outside the bracket.

0.2s + 0.04 + o.5s - 0.2 = 5.44
0.7s -0.16 = 5.44
Now keep all the terms containing s on one side and take the other terms to the right side. Remember to change the sign as you do.
0.7s = 5.44 + 0.16
0.7s = 5.6
Dividing by 0.7 throughout
s = 8