What should be added to 7(3x – 5y) to obtain 2(8x – 9y)?1. 17y –

1.	What should be added to 7(3x – 5y) to obtain 2(8x – 9y)?1. 17y – 5x2. 5x – 17y3. 17x – 5y4. 17x + 5y
Answer» Correct Answer - Option 1 : 17y – 5x Given: Given equation = 7(3x – 5y) = 21x – 35y Final equation = 2(8x – 9y) = 16x – 18y Concept: Subtract the given equation from the final equation to get the desired answer. Calculation: Let the desired equation be ‘a’. ∴ 21x – 35y + a = 16x – 18y ⇒ a = 16x – 18y – 21x + 35y ⇒ a = 17y – 5x

What should be added to 7(3x – 5y) to obtain 2(8x – 9y)?1. 17y – 5x2. 5x – 17y3. 17x – 5y4. 17x + 5y

Answer» Correct Answer - Option 1 : 17y – 5x

Given:

Given equation = 7(3x – 5y) = 21x – 35y

Final equation = 2(8x – 9y) = 16x – 18y

Concept:

Subtract the given equation from the final equation to get the desired answer.

Calculation:

Let the desired equation be ‘a’.

∴ 21x – 35y + a = 16x – 18y

⇒ a = 16x – 18y – 21x + 35y

⇒ a = 17y – 5x

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What should be added to 7(3x – 5y) to obtain 2(8x – 9y)?1. 17y – 5x2. 5x – 17y3. 17x – 5y4. 17x + 5y

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