So you know that:
2x+y=14+y
and
5x-y=x+13y
Here you have two equations with two unknown variables:
If you isolate x from the second equations you get:
x=(7/2)y
Insert that in the first equations and solve for y:
2*(7/2)y+y=14+y
y=2
Insert that value for y in one of the two equations (i chose the first):
2x+2=14+2
x=7
Therefore x=7
Hope that helped.
Actually you could start with isolating x, and then insert that in one of the two equations.
3^4 = 3 x 3 x 3 x 3
4^3 = 4 x 4 x 4
3^3 = 3 x 3 x 3 = 27
Hope it helps!
Answer:
if your solving for n.....
Step-by-step explanation:
n=3
Ah well this would look like 2(30) + 30 = 90 aka 2L + W = 90
Answer:
V≈166.67
Step-by-step explanation:
V=ABh
3=100·5
3≈166.66667
