Solve: 7 x + 2 y = 16; -21 x-6 y = 24 Solve : 7 x + 2 y = 16 ; -21 x - 6 y = 24

Question

asked Dec 5, 2023 4.9k views

1 Answer

XenoPuTtSs · Answer 1 · 2023-12-10T18:11:50+0000

Answer:

No solution

Explanation:

7x + 2y = 16 ----------------(I)

-21x - 6y = 24 -----------------(II)

$\sf (a_1)/(a_2)=(7)/(-21)=(-1)/(3)\\$

$\sf (b_1)/(b_2)=(2)/(-6)=(-1)/(3)$

$\sf (c_1)/(c_2) =(16)/(24)=(2)/(3)\\\\ (a_1)/(a_2)=(b_1)/(b_2) \\eq (c_1)/(c_2)$

So, the lines are parallel and has no solution