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I need the answer to these questions FAST PLEASE

I need the answer to these questions FAST PLEASE-example-1
User Somsubhra
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1 Answer

12 votes

Answer:


\underline{\underline{ \boxed{ans(1)}}} \: \boxed{x = 11} \\ \\ \underline{\underline{ \boxed{ans(2)}}} \: \boxed{x = 9} \\ \\ \underline{\underline{ \boxed{ans(3)}}} \: \boxed{x = 10} \\ \\ \underline{\underline{ \boxed{ans(4)}}} \: \boxed{x = 6} \\ \\ \underline{\underline{ \boxed{ans(5)}}} \: \boxed{x = 7} \\ \\ \underline{\underline{ \boxed{ans(6)}}} \: \boxed{x = 13} \\ \\

Explanation:


\underline{\underline{ \boxed{ans(1)}}} \\ (54)/(36) = (24)/(x + 5) : \\ (36)(24) = (54)(x + 5) \\ (x + 5) = ((36)(24))/((54)) \\ x = 16 - 5 \\ \boxed{x = 11} \\ \\ \underline{\underline{ \boxed{ans(2)}}} \\ ((20 + 8))/(20) = ((2x + 3))/(15) : \\ (20)(2x + 3) = (15)(28) \\ (2x + 3) = ((15)(28))/((20)) \\ 2x = 21 - 3 \\2x = 18 \\ \boxed{x = 9} \\ \\ \underline{\underline{ \boxed{ans(3)}}} \\ (24)/(28) = (x + 8)/(3x - 9) : \\ (28)(x + 8) = (24)(3x - 9) \\ 28x + 224 = 72x- 216 \\ 72x - 28x = 224 + 216 \\ 44x = 440 \\ \boxed{x = 10} \\ \\ \underline{\underline{ \boxed{ans(4)}}} \\ (39)/(4x + 2) = (42)/(5x - 2) : \\ (42)(4x + 2) = (39)(5x - 2) \\ 168x + 84 = 195x- 78 \\ 195x - 168x = 84 + 78 \\ 27x = 162 \\ \boxed{x = 6} \\ \\ \underline{\underline{ \boxed{ans(5)}}} \\ (48)/(4x + 4) = (60)/(7x - 9) : \\ (60)(4x + 4) = (48)(7x - 9) \\ 240x + 240 = 336x- 432 \\ 336x - 240x = 240 + 432 \\ 96x = 672 \\ \boxed{x = 7} \\ \\ \underline{\underline{ \boxed{ans(6)}}} \\ (40)/(40 - 5) = (3x - 7)/(2x + 2) : \\ (40)(2x + 2) = (35)(3x - 7) \\ 80x + 80 = 105x- 245 \\ 105x - 80x = 80 + 245 \\ 25x = 325 \\ \boxed{x = 13} \\ \\

User Shivam Puri
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