For solving each pair of equations in this exercise, use the method of elimination by equating coefficients
13+2y=9x
3y=7x
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13 + 2y = 9x...(1)
3y = 7x...(2)
Multiplying equation no. (1) by 3 and (2) by 2, we get,
39 + 6y = 27x
6y = 14x
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39 = 13x
x = 39/13
x = 3
From (2)
3y = 7(3)
y = 7
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