Question

X + Y - 8 upon 2 is equal to X + 2 Y - 14 upon 3 is equal to 3 x minus 1 upon 4

Answer 1

seex+y-8/2 = x+2y-14/3=3x-1/4
firstly ,
x+y-8/2=3x-1/4
4(x+y-8)=2(3x-1)
4x+4y-32=6x-2
4y=6x-4x-2+32
4y=2x+30
y=x+15/2 ......................equ(i)
then ,


x+2y-14/3=3x-1/4
4(x+2y-14)=3(3x-1)
4x+8y-56=9x-3
8y=9x-4x-3+56. (equate the value pf y in equ i)
8(x+15/2)=5x+53
4x+70=5x+53
70-53=5x-4x
x=17

put the value of x in equ (i)
y=x+15/2
y=17+15/2
y=32/2
y=16