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timofeeve [1]
3 years ago
12

Ellie ran 4x + 5 miles today and 3x – 2 miles

Mathematics
2 answers:
ryzh [129]3 years ago
6 0

Answer:

x = 4

Step-by-step explanation:

4x + 5 + 3x - 2 = 31 \\ 7x + 3 = 31 \\ 7x = 28 \\ x = 4

kompoz [17]3 years ago
5 0

Answer:

4

Step-by-step explanation:

4x+5+3x-2=31

7x+3=31

7x=28

x=4

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Answer:

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Step-by-step explanation:

x 2+5x+6=0

To solve the equation, factor x^2+5x+6 using formula x^2+(a+b)x+ab=(x+a)(x+b). To find a and b, set up a system to be solved.

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