Question

if a + 2b = 5 c = 3 the value of a + 2 (b-c)
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Answer 1

Answer:

9/5

Step-by-step explanation:

a + 2b = 3 ----- (1)

5c = 3

=> c = 3/5

so, a + 2(b - c) = a + 2b - 2c = 3 - 2(3/5) = 9/5

Answer 2

Given- a+2b = 5c = 3

To find- a+2(b-c) = x  ---------- (i)

Solution-

⇒Opening (i) we get, a+2b-2c = x

⇒Putting the value of a+2b in (i) , 3- 2c = x ------------- (ii)

⇒We know that 5c=3 , so c=3/5

⇒Putting c's value in (ii) , we get

⇒3-2(3/5) = x

⇒3-(6/5) = x

⇒9/5 = x

So the answer is 9/5.

Hope it helps!!

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