It is 6a + 4
4y - 4 + 3a + 7 - 6a - 4 = 4y -1 - 3a
2a + 3a + 4 = 5a + 4
3a plus 4 equals 3a +4. You can not combine the two parts because they are not like terms so there is no way to simplify this.
(3a - 4)(3a - 4)
4a + 3a = (4 + 3)a = 7a
It can be simplified to: 3a^2 +10a+7 or factored as (3a+7)(a+1)
4a+3a-4 = 10 4a+3a = 10+4 7a = 14 a = 2
a = 3a + 4 0 = 2a + 4 2a = -4 a = -2
3a + a = 4a Example: a = 5 (3x5) + 5 = 15 + 5 = 20 = 4 x 5
a is equal to 4
(a + 2)(3a - 2)