Question

4a3a = (4 + 3)a2-5 = 7a?
What’s wrong with this equation somone plz help

Answer 1

a = -1

Explanation:

4a3a = (4+3)2-5 = 7a

12a = 14a - 5 = 7a

12a = 14a - 5 - 7a = 0

12a -14a + 5 + 7a = 0

(12 - 14 +7)a + 5 = 0

5a + 5 = 0

5a = -5

a = -1

i don't know if its right or not