lf 2x + 3 y = 10 and 3x + 2y = 15, find the value of [x+ y]
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Answer:
2x + 3y = 10 (i)
3x + 2y = 15 (ii)
Adding equation (i) and (ii)
2x + 3y = 10
3x + 2y = 15
_________________
5x + 5y = 25
∴ 5 (x + y) = 25
∴ x + y = 25/5
∴ x + y =5
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