Question
If 2x + 3y = 27 and 3x - y = 13, find (x +
y).Solution
ATQ, From 3x - y = 13 y = 3x - 13 Substitute in 2x + 3y = 27: 2x + 3(3x - 13) = 27 2x + 9x - 39 = 27 11x = 66 x = 6 y = 3*6 - 13 = 18 - 13 = 5 x + y = 6 + 5 = 11
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