Q. 3 A4.8( 5 Votes )

# Let us solve the

Let’s express the variable in terms of another variable.

2(x - y) = 3 ………

2x - 2y = 3

2x = 3 + 2y ………

and,

5x + 8y = 14 ………

5x = 14 – 8y ………

on comparing eq.  and eq. 

we get, 15 + 10y = 28 – 16y

26y = 13 ………

from eq.    ………

by eq.  and 

x = 2, by using the result in eq.  and eq. 

2(x - y) = 3

L.H.S  = 3 = R.H.S

similarly,

by eq. 

5x + 8y = 14

L.H.S = 10 + 4

= 14 = R.H.S

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