Music, asked by pushpaomprakash1978, 5 months ago

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Answered by pragnya03
3

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Answered by ompirkashsingh893349
8

Answer:hey mate, here is your Answer!!Mark me as BRAINLIST!!Explanation: \huge \underline \red a \underline \red n \underline \red s \underline \red w \underline \red e \underline \red r1). \frac{2x + }{4x - }  \frac{3}{5}  =  \frac{3}{7}  \\  = 7(2x + 3) \:  =  3(4x - 5) \\ =  14x + 21  =  12x - 15 \\  = 14x - 12x =  - 15 - 21 \\  = 2x =  - 36 \\  = x = 18.

2).  \frac{5x - }{3x + }  \frac{4}{7}  =  \frac{1}{2}  \\  = 2(5x - 4) = 1(3x + 7) \\  = 10x - 3x = 7 - 8 \\  = 7x =  - 15 \\  = x =  \frac{ - 15}{7}

3). \frac{y}{y + 3}  =  \frac{7}{8}  \\  = 8(y) = 7y + 21 \\ =  8y - 7y = 21 \\  = y = 21

4).  \frac{z + 4}{z}  = 5 \\  = 1(z + 4) = 5z \\ =  z + 4 = 5z \\  = z - 5z =  - 4 \\  =  - 4z =  - 4 \\  = z =  \frac{ - 4}{ - 4}  \\  = z = 1

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