I thinks it’s 3 because 21-12=9 so you spent 9 dollars 9/3=3
-19u + 11 = -20u
Add 19u to both sides.
11 = -u
Divide both sides by -1.
-11 = u
Answer:
933 + c ≤ 1500
Step-by-step explanation:
c = credit
X and Y stand for 0 because 7*0=0 and 4*0=0. 0+0=0