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Marat540 [252]
3 years ago
10

Solve for x..................

Mathematics
1 answer:
Yanka [14]3 years ago
4 0

Answer:

x = 4

Step-by-step explanation:

(5x+131)° and (5x+19)° are supplementary. Therefore, (5x+19)° + (5x+131)° equals to 180°.

Knowing that, we can do the following:

  • (5x+19) + (5x+131) = 180
  • 5x + 19 + 5x + 131 = 180
  • 10x + 140 = 180
  • 10x = 40
  • <em>x = 4</em>
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Answer:

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Step-by-step explanation:

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 4x-3y=17

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----------------
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Now find x.  To do this, substitute 39/7 for y in either of the given equations.  Solve the resulting equation for x.

Write your solution in the form (x, y):  ( ? , 39/7).
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