Answer:

Step-by-step explanation:
We can directly substitute y of the first equation to the second equation.
-2x - 1 = 3x - 16
5x = 15
x = 3
Substituting back to any of the two equations, we get y = -2(3)-1 = -7. If you check with the second equation, y = 3(3)-16 = -7 as well.
Therefore
.
Answer:
18
Step-by-step explanation:
528/3=176
go one lower and one higher
175+176+177 = 528
Answer:
925
Step-by-step explanation:
18 1/2 * 12 1/2* 4= 925