4 (x+2) + 5(y+2) = 20; 5x + 4y = 7
Q5. Simplify:
(i) 2√3−√2
2√2+3√3
(ii) 7√48 − √72 − √27 + 3√2
Q6. If x + y =14 and x- y =2. Find the value of 2x- y.
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Answer:
Q. no. 6
2x =16
therefore X = 8
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