Question

Solve 3x-5y-4=0 and 9x-2y=7

Answer 1

3X-5Y = 0
3X = 5Y
X = 5Y/3..(1)

9X-2Y = 7
9(5Y/3)-2Y = 7
15Y -2Y =7
13Y = 7
Y = 7/13.
X = 5Y/3
= 5×7/15/3
= 35/15/3 = 7

Answer 2

3x-5y-4=0....eq... 1 x2

9x-2y-7=0. eq..... 2x5

equ...2-eq.. 1 than u get

x= 9/13