Answer:
18÷2=9
Step-by-step explanation:
2s-13=5
2s=5+13
2s= 18
answer is 9
2s-13= 5
2s-13+13= 5+13
moving -13 to the other side
2s= 5+13
divide both sides by 2
2s/2= 18/2
Cross out 2 and 2 , divide by 2 and then becomes 1*1*s=s
s= 18/2
Answer: s= 9
