Question

If A = 2a + 3b, B = 7a + 18b, C = – 6a - b, then find the va
a) A + B
b) B + C
C) A + C
If A = x + y + 2z, B = 2x - y - 3z, C = x - y + z, then find t​

Answer 1

Answer:

Matched Problem 2 Solve each of the following systems by graphing: (A) x + y = 4. 2x - y = 2. (B) 6x - 3y = 9. 2x - y = 3. (C) 2x - y = 4. 6x - 3y = -18.