Math, asked by caroline13, 11 months ago

3x+7/5x+16=3x-2/5x-2

Answers

Answered by Anonymous
23
HEY MATE ...

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caroline13: can u say me y did u cancel 15xsquare in the problem
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Answered by XxDazzledSweetiexX
52

Question -

\sf{{ \: Solve: \:  }{ \: \frac{3x + 7}{5x + 16}  =  \frac{3x - 2}{5x - 2}  }}

Given -

\sf{{ \: Equation \: - \:  }{ \: \frac{3x + 7}{5x + 16}  =  \frac{3x - 2}{5x - 2}  }}

To do -

  • Solve the equation
  • Find the value of x

Solution -

By cross multiplication,

:⟼ (3x + 7)(5x - 2) = (3x - 2)(5x + 16)

:⟼ 15x² + 35x - 6x - 14 = 15x² - 10x + 48x - 32

:⟼ 15x² + 29x - 14 = 15x² + 38x - 32

:⟼ 15x² + 29 - 15x² - 38x = -32 + 14

:⟼ -9x = -18

\sf{{:⟼\: x = }{ \:  \frac{ - 18}{ - 9}  \: }}

:⟼ x = -2

Therefore, the value of x is -2.

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