Question

1. 5a² + 3a - 2a - 3a² =

2. 3(a + 2b ) - 2 (a - b) =

3. 4x + 3 = 2x - 5

Answer 1

1. 5a²+3a-2a-3a²= 2a² + a
2. 3(a + 2b ) - 2 (a - b) = 3a + 6ab - 2a + 2b = a + 6ab + 2b
3. 4x + 3 = 2x - 5
4x-2x= -5-3
2x = -8
x = -4