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Gnoma [55]
3 years ago
13

Helppppp please answer 30 pointssss

Mathematics
1 answer:
Margarita [4]3 years ago
3 0

Answer:

\frac{x}{3}  =  \frac{7x}{12x - 15}  \\ 12 {x}^{2}  - 15x = 21x \\ 12 {x}^{2}  -36x = 0 \\  12x(x - 3) = 0 \\ \boxed{x = 0} \: or \: \boxed{x = 3} \\  \\  \frac{25 - 3x}{x + 5}  = 1 \\ 25 - 3x = x + 5 \\ 3x + x = 25 - 5 \\ 4x = 20 \\ \boxed{ x = 5} \\  \\  \frac{3x - 2}{x}  =  -  \frac{8}{x}  \\ 3 {x}^{2}  - 2x =  - 8x \\  3 {x}^{2}  -6x = 0 \\ 3x(x - 2) = 0 \\ \boxed{x = 0} \: or \: \boxed{x = 2} \\  \\  \frac{3 - x}{x}  =  \frac{x + 1}{2x}  \\ 6x - 2 {x}^{2}  =  {x}^{2}  + x \\ 3 {x}^{2}  - 5x = 0 \\ x(3x - 5) = 0 \\  \boxed{x = 0} \: or \: \boxed{x =  \frac{5}{3} }

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3 0
3 years ago
1)
almond37 [142]

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3 years ago
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