WHOEVER ANSWERS FIRST GETS BRAINLIEST

Answer:
x+4=10, x-3=13
Step-by-step explanation:
9.) x = the number of slices of pizza that Adam shares.
Adam doesn't share 4 slices, meaning that is the leftover amount
10 is the number of all the slices of pizza before Adam share
The amount that he shares plus the amount that he doesn't share has to equal the total amount, which is 10. therefore the only possible equation would be x+4 = 10
10.) x is the number of dollars in her wallet BEFORE she makes the transaction. if she pays with 3 dollars, then that would be x - 3. it states that the number of dollars left AFTER the transaction is 13, which would be
x - 3 = 13