Answer:
S = -1.5
Step-by-step explanation:
1) Begin with subtracting the lower coefficient from the higher coefficient by changing signs. Do note that if we were dealing with negatives, the lower negative number would be changed to positive, since for these type of problems you have to flip the sign.
2) 4.5s - 0.5s = 4
3) After subtracting as shown above, you would create an equation with what is left, 4s + 7 =1
4) Subtract 7 on both sides -7 + 1 = -6
4s = -6
5) Divide both sides by 4 to isolate the variable, in order words to find s.
6) -6/4 = -1.5
7) S is equal to -1.5
