7x+ 1y=6
5x+3y=34.
The given system of equation can be solved be substitution method. Using the first equation, y= 6-7x. Substitute this in the other equation as follows:
5x + 3(6-7x)=34
5x + 18 -21x=34
-16x = 34 -18
16x = -16
Which gives x= -1, and hence y= 6 –7(- 1)
Y= 13
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