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Eva8 [605]
3 years ago
9

What is the answer to the problem 3(2x-5)-4(x-3)=7

Mathematics
1 answer:
il63 [147K]3 years ago
3 0

Disitribute the 3 to the first parenthesis:

3(2x-5) = 6x-15

Distribute the 4 to the second parenthesis:

4(x-3)=4x-12

So, the equation becomes

6x-15-4x+12=7 \iff 2x=10 \iff x = \dfrac{10}{2} = 5

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3 years ago
Read 2 more answers
In a regional spelling bee, the 8 finalists consist of 3 boys and 5 girls. Find the number of sample points in the sample space
posledela

Answer: a.) 40320

b.) 336

Step-by-step explanation:

since we have 8 possible positions, with 8 different candidates, then there are 8 possible ways of arranging the first position, 7 possible ways of arranging the Second position, 6 ways of arranging the 3rd position, 5 possible ways od arranging the 4th position, 4 possible ways of arranging the 5th position, 3 possible ways of arranging the 6th position, 2 possible ways of arranging the 7th position and just one way of arranging the 8th position since we have only one person left.

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8*7*6 = 336

5 0
3 years ago
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