Question

x-y=y-4 ,y-4=79-x find the value of x and y solving these two equation

Answer 1

x-2y= -4
x =-4+2y
x-y =83
-4+2y-y=83
y =87
put value
x=-4 +2×87
x=-4+174 =170

Answer 2

hey there

here is your answer

x - 2y = ( -4 )  

x =  ( -4 ) + 2y

given that y - 4 = 79

therefore

x-y = 83

( -4 ) + 2y - y = 83

y = 83 + 4

y = 87

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put value

x=-4 +2×87

x=-4+174 =170  

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