4s - 3 = 98 / 2
Calculate the right half (98/2 = 49)
4s - 3 = 49
Bring the -3 over to the right half so it becomes +3
4s = 49+3
Calculate right half
4s = 52
Bring the 4 over to the right. Multiplication becomes division
s = 52/4
s= 13
@Mellie, you made a mistake by adding the 3 to 49. 49+3 = 52, not 51! :)