Equilatral
equi-equal
lateral-side
sides have to be equal
therefor
4n=2n+10=7n-15
minus 2n from everybody
2n=10=5n-15
2n=10
divide 2
n=5
see if that works
10=5n-15
10=5(5)-15
10=25-15
10=10
true
n=5
yha
Answer:
x=16, z=91
Step-by-step explanation:
Cos(x-90) fits this question
Answer:
5 miles an hour
Step-by-step explanation:
15 divided by 3