3 years ago

2x+2y=16 , 6x+4y=38 what is the value of x

1 answer:

5 0

1st equation—x, substitute y:
3x + 2(x + 3) = 16 
3x + 2x + 6 = 16 
5x = 10 
x = 2 

y in the above equation: 
= 2 + 3 
= 5 

Answer: x = 2, y = 5

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