anonymous
  • anonymous
HELP ALGEBRA 2
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
Hero
  • Hero
The question is simply asking which pair of equations have the same value of x.
anonymous
  • anonymous
THE first problem is X=15 the second problem is x=15

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Hero
  • Hero
And to provide the steps to each solution
anonymous
  • anonymous
and i don't know how to solve the third one
anonymous
  • anonymous
i mean the second one is x=16
anonymous
  • anonymous
but
anonymous
  • anonymous
do you know how to solve the third one?
Hero
  • Hero
Do you know what cross multiplication is?
anonymous
  • anonymous
yes
anonymous
  • anonymous
is that what I have to do? can you show me how? because I don't know how to cross multiply with this fraction
anonymous
  • anonymous
find the value of x from second and plug in (1) and (3) and see if it satisfies the equations.
Hero
  • Hero
When you cross muliply, you take something like \[\frac{a}{b} = \frac{c}{d}\] And then multiply the denominators into the numerators so that \[ab = bc\] In this case, you take \[\frac{2x + 1}{3} = \frac{x + 6}{2}\] and cross multiply so that: 2(2x + 1) = 3(x + 6) Can you solve for x from here?
Hero
  • Hero
\[ad = bc^{*}\]
anonymous
  • anonymous
|dw:1377706971676:dw|
anonymous
  • anonymous
IS THAT RIGHT?
Hero
  • Hero
What did you get for x?
anonymous
  • anonymous
16
Hero
  • Hero
Okay, so you're good then.
anonymous
  • anonymous
YAY! THANK YOU SO MUCH!!

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