Answer:
a=-5
Step-by-step explanation:
divide both sides by -2: -5=a
a=-5
74.40/3 friends= 24.80 for each friend. Simply division, easy to do on a calculator if you are allowed one.
Your answer is going to be 20 19/20
14/20 i believe
(i cant submit this without other characters > jdjdjdjdjfjjfjfjfjfjdj)