Answer:
120
Step-by-step explanation:
3*30=90
1*30=30
90+30=120
Yes I think B is the correct answer
2x-5y=16 =>10x-25y=80
5x+3y=9 => 10x+6y=18
subtract one from the other: (6-(-25)y=(18-80), 31y=-62, y=-2
plug y=-2 in 2x-5y=16 to find x: 2x+10=16, x=3
12x+y=12*3-2=34
Answer:
The answer is:
Step-by-step explanation:
1. -30
2. 20