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9966 [12]
3 years ago
5

What is the result of subtracting the second equation from the first?

Mathematics
2 answers:
-Dominant- [34]3 years ago
5 0

Answer:

  12y = -7

Step-by-step explanation:

Since I find it difficult to properly align parts of the equation for a vertical presentation, I like to show the difference as the difference of the left side being equal to the difference of the right side:

  (2x +7y) -(2x -5y) = (-8) -(-1)

  x(2 -2) +y(7 -(-5)) = -8 +1

  12y = -7 . . . . the difference of the equations

Delvig [45]3 years ago
4 0

Answer: 12y=-7

Step-by-step explanation:

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D (You got it right.)

Step-by-step explanation:

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6 0
2 years ago
A roofer calculates his bid price using the formula P = 1.85s + 4.2f, where s is the area of the roof in square feet and f is th
solmaris [256]

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Step-by-step explanation:

Hi, to answer this question we have to solve the equation given, by substituting P = 4,148 and f=190 in the equation.

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