Question

please solve Q14 of Linear equationsin one variable

Answer 1

7x+8y=87      [1]

6x+4y=66    multiply this eqn by 2

12x+8y=132    [2]

eqn [1]-[2]

-5x=-45

x=9

substitute x=9 in eqn[2]

6*9+4y=66

54+4y=66

4y=12

y=3

Answer 2

I hope you like this and u can add me in brainlist