Question 79

What should be added to 3(x-2y) to obtain 2(3x + y) - 5(2x + 3)?

Solution

Let $$m$$ should be added to 3(x-2y) to obtain 2(3x + y) - 5(2x + 3)

=> $$(m) + [3(x-2y)] = 2(3x+y)-5(2x+3)$$

=> $$m + 3x-6y=6x+2y-10x-15$$

=> $$m = (2y+6y)+(-4x-3x)-15$$

=> $$m=8y-7x-15$$

=> Ans - (A)

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What should be added to 3(x­-2y) to obtain 2(3x + y) ­- 5(2x + 3)?