Question

y =-4x+16, -3x+8y=23​

Answer 1

y+4x=16

8y-3x=23

_________

multiply first by 8

we get,

8y+32x=128

8y-3x=23

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change the sign of 2nd eqations --

(-) (+) (-)

now we get value of x

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35x=105

x=3,now put value of x in equation 1

you will get value of y,

y+4(3)=16

now u get

y=4and x=3