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ikadub [295]
3 years ago
11

Help please I need help

Mathematics
2 answers:
Talja [164]3 years ago
7 0

Answer:

40x = 60(x - 1) \\  \\ 2x = 3x - 3 \\  \\ x = 3 \\  \\  \\ 7 \times \frac{7x}{2}  - 29x =  - 9 \\  \\ 49x - 58x =  - 18 \\  \\  - 9x =  - 18 \\  \\ x = 2

leva [86]3 years ago
3 0

Answer:

<h3>#1</h3>
  • 40x = 60x(x - 1)
  • 40x = 60x² - 60x
  • 60x² - 100x = 0
  • 3x² - 5x = 0
  • x(3x - 5) = 0
  • x = 0 or
  • 3x = 5 ⇒ x = 5/3
<h3>#2</h3>
  • 7×7x/2 - 29x = - 9
  • 49x/2 - 29x = - 9
  • 49x - 58x  = - 18
  • -9x = -18
  • x = -18/-9
  • x = 2
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