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What is the simplified numerical value of (a + 11b)/(a - b) if (4a + b)/(a - 2b) = 5?

 Jan 30, 2022
 #1
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Ok, so let's simplify the equation first. 

 

4a + b = 5(a - 2b)

4a + b = 5a - 10b

-a = -9b

a = 9b

 

Plugging that in to the expression, 

 

(9b + 11b)/(9b - b)

20b/8b

5/2

 

⚡⚡⚡

ShockFish

 

PS: There's a similar question out there: https://web2.0calc.com/questions/im-stuck_12 

 Jan 30, 2022

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