1. (5a-2b)-(3b-4a) 2. (6c-b)-(2c+3b) 3. 8x-(3x-2y)-7y 4. 0.5(a-3b)-(3b+0.5a) срочно...

Question

1. (5a-2b)-(3b-4a)
2. (6c-b)-(2c+3b)
3. 8x-(3x-2y)-7y
4. 0.5(a-3b)-(3b+0.5a)
срочно помогите

Answer 1

1. 9a + b
2. 4c - 4b
3. 5x - 5y
4. -4.5b