Answer:
1) ?
2) B
3) x = 2*
4) x = 0
5) B
6) y = -5x + 4
7)?
Step-by-step explanation:
1) 5(4x + 2y) - y = 20x + 10y + y = 20x + 9y = 20x + 9y
2)* Any value of x makes the equation true. All real numbers. (You may say x = 2 or anything else).
Interval Notation:
(−∞,∞)
