Good evening ,
Answer:
Step-by-step explanation:
(4a - 5) + (3a + 6) = (4a + 3a) + (6-5) = 7a + 1.
:)
Answer:
a = -2 OR 5/4
Step-by-step explanation:
(4a - 5) + ( 3a + 6)
Expanding the brackets
12a^2 + 24a - 15a - 30
Factorizing ...
12( a + 2) - 15 ( a + 2)
(a + 2) ( 12a - 15) = 0
Therefore:
(a + 2) = 0
OR
(12a - 15) = 0
Simplifying further:
From a + 2 = 0
a = -2
OR
12a -15 = 0
12a = 15
a = 15/12
a = 5/4
a = -2 or 5/4
