X+1=y and 3y-7=2x are your two equations.
Substitute x+1 in for y
3(x+1)-7=2x
3x+3-7=2x
x-4=0
x=4
Plug in 4 for x in either equation to solve for y
x+1=y
4+1=y
5=y
x=4 and y=5
Hope I could help!
Answer:
Step-by-step explanation: -1, 16
For this case, we have the following equation of the second degree:
If we divide between 2 on both sides of the equation, we will have:
Where:
The solutions will come from:
Substituting:
So, we have:
Answer:
Option A
Option E
Answer:
Step-by-step explanation:
(1400x14.5x5%) + 1400 =2415
Answer: 14.5 months