Question

For solving each pair of equations in this exercise, use the method of elimination by equating coefficients
13+2y=9x
3y=7x

Answer 1

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