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Genrish500 [490]
3 years ago
9

2x - 5x + 6x + 7 + 14

Mathematics
1 answer:
Ann [662]3 years ago
5 0
2x - 5x= -3x + 6x = 3x
7 + 14 = 21
3x + 21
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Step-by-step explanation:

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3 years ago
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Trisha has two boxes of marbles than

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Mrs.E bought 3 drinks and 5 sandwiches for $25.05 and Mr.E bought 4 drinks and 2 sandwiches for $13.80. How much does each drink
MAVERICK [17]

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$1.35

Step-by-step explanation:

Set up a system of equations, where d represents the price of one drink and s represents the price of one sandwich:

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7 0
3 years ago
arper went into a movie theater and bought 10 bags of popcorn and 6 drinks, costing a total of $79. Damian went into the same mo
boyakko [2]

Answer:

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7 0
3 years ago
Factor 2m2 - m - 21​
maks197457 [2]

Answer:

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Step-by-step explanation:

hello:

2m² - m - 21​

∆ =b²-4ac    a=2  and  b= -1   and  c= -21

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7 0
4 years ago
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