Youre using the distributive property. sk you multiply negative three by x and negative 5. itt equals negative three x and positive 15. you subtract 15 frkm 45. which leaves 30. then you divide by negative three. the answer is negative ten.
Answer:
invertebrates are animals that lack back bone like protozoans such as amobas and paramecia,annelids such as earth worm ,spongs, comb jellies ,hydras
The reactants are like a key that fits into the enzyme forming the lock