Question

3. Find the orthocenter of the triangle whose sides are given by 4x - 7y + 10=0,
x + y = 5 and 7x + 4y = 15.​

Answer 1

x+y=5________1

7x+4y=15______2

by1×4

4x+4y=20_____3

from2-3

3x=-5

x=5÷3

x=5÷3 in 1

5÷3+y=5

y=5-5÷3

y=10÷3