Help plssss It is known that a - 2b = 3. Calculate the value of the expression

Pir asked Mar 24, 2023

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14 votes

Help plssss

It is known that a - 2b = 3. Calculate the value of the expression – 2a + 4b.

Pir asked Mar 24, 2023

by Pir

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20 votes

Explanation:

- 2a + 4b = - 2(a - 2b)

The new expression is two times the previous equation...but negatively

therefore this means to find the new equation you multiply the whole given equation by

$- 2(a - 2b) = - 2(3) \\ - 2 a + 4b = - 6$

Raysa answered Mar 30, 2023

by Raysa

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