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crimeas [40]
2 years ago
10

Find the sum of 6a - 5b + c, -2a +4b -2c​

Mathematics
1 answer:
Sphinxa [80]2 years ago
4 0

Answer:

4a-b-c

Step-by-step explanation:

we first look at the letters of each number. if there is only a letter, there is an imaginary 1 in front of it. we need to make sure that we add the numbers that have the exact same letters because they are known as like terms. we cannot add 6a and 4b because the letters are different and they are known as unlike terms. When we add numbers with the same letter ONLY the number changes

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Pedro sliced 27 cakes. Each chocolate cake had 7 slices and each lemon cake had 6 slices. If Pedro made 170 slices in total, how
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Answer:

Step-by-step explanation:

Let number of chocolate cakes = c

Number of lemon cakes = l

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Multiply equation (i) by (-7) and then add. So, c will be eliminated and we can find the value of  l

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2 years ago
Which is the best approximation for the solution of the system of equations?
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Answer:

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Step-by-step explanation:

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