given equation 2x+y=7

a) what is the value of x  when y=3
b)what is the value of y when x=y 
c) find one more solution for the above equation 

The given equation is,2x + y = 7a.Put y = 3 in the above equation, we get2x + 3 = 72x = 7 - 32x = 4x = 2b.Put x = y in the above equation, we get2y + y + 73y = 7y = 73c.Take y = 1, we get    2x + 1 = 72x = 7 - 12x = 6x = 3So, 3, 1 is the solution of the given equation.

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root 2
 
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a)if y=3
2x+3=7(y=3)
2x=7-3
2x=4
x=2
b)ifx=y
2x+x=7(x=y)
3x=7
x=7/3
c)let x be 3 and y be 1
2*3+1
=6+1
=7


 
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same as jitesh
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a) 2  b) 7/3  c) (1,5)
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