a= -4 because a negative times a negative equals a positive
Chat with our AI personalities
5a + 20 = ? Your question is incomplete.
5a = -5a + 5Add 5a to each side:10a = 5Divide each side by 10:a = 5/10 = 1/2
7a + 4 = 5a + 7 7a = 5a + 3 2a = 3 a = 3/2
3a4 - 2a2 + 5a - 10 - 2a4 + 4a2 + 5a - 2 = a4 + 2a2 + 10a - 12 = a4 + (2a - 2)(a + 6)
6a + 5a = -11 Combining like terms: 11a = -11 Dividing by 11: a = -1