Question

solve for x and y using cross multiplication 2x-3y+8=0 and 3x+y+1=0​

Answer 1

×=9

y=4

Step-by-step explanation:

2×-3y+8=0 =n(1)

3×+y+1=0 =n(2)

by putting =n(1) in =n(2)

=2×-3y+8-3×+y+1=0

=3×-2×-3y-y+8+1=0

=×-2y+7=0

if ×=1, then the value if y?

=(1) -2y+7=0

=-2y+7=-1

=-2y=-1-7

=-2y=-8

minus is cut both sides then

=2y=8

=y=8÷2

=y=4

if y=1 then value of x?

=×-2(1) +7=0

×-2+7=0

=×-9=0

×=9