Question

Find the value of x if 15x = (30²) - (40²)​

Answer 1

Step-by-step explanation:

x will be equal to -700/15

Answer 2

Answer:

Answer

15x+17y=85 ……….(1)

17x+15y=75 ……….(2)

Add both equations

32x+32y=160

32(x+y)=160

x+y=5.