Insert 3x - 7 for y in 15x - 5y = 14
15x - 5(3x - 7) = 14
15x - 15x + 35 = 14
0 = -21
There is no solution.
Answer:
36 1/4 inches
Step-by-step explanation:
Subtract 38 1/2 from 74 3/4:
74.75 - 38.5
= 36.25 or 36 1/4
So, the vertical measurement of the bulletin board is 36 1/4 inches
If AB is 15, then BC is 15*9/5=27. Therefore, we can write the equation 5x+2=27.
We subtract by 2 to find that 5x=25, and divide by 5 to see that x=5.