Question

3a_2b+5c;2a+5b_7c;-a_b+c​

Answer 1

Answer:

4a+2b-c

Step-by-step explanation:

(3a-2b+5c)+(2a+5b-7c)+(-a-b+c)

take the same terms (variables) together

(3a+2a-a)+(-2b+5b-b)+(5c-7c+c)

(5a-a) + (-3b+5b)+(6c-7c)

4a+2b-c