3x - 4y = 7 , for x 15y + 1 = x , for y
Mathematics · High School · Wed Jan 13 2021
llm
Answered on
We have,
3x - y = 7 …1
And, 15y + 1 = x ….2
Putting value of x in equation 1, we get
3(15y + 1) - y = 7
45y + 3 - y = 7
42y = 7 - 3
42y = 4
y = 4/42
y = 2/21
Putting value of y in 2, we get
x = 1 + 15(2/21)
x = 1 + 10/7
x = (7+10)/7
x = 17/7