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Dahasolnce [82]
3 years ago
6

The substitution method: Solve for x in the second equation and substitute it into the first equation. The result is .

Mathematics
2 answers:
Dvinal [7]3 years ago
7 0

Answer: solve for c in a second equation and substitute: correct is 2(-3+2y) +5y= -6. 100% correct.

Step-by-step explanation:

jek_recluse [69]3 years ago
5 0

Suppose you have the following system of linear equation:


\left \{ {{(1) \ ax+by=c} \atop {(2) \ dx+ey=f}} \right.


According to the statement above, first we need to solve for x in the second equation:


dx+ey=f \\ \\ \therefore x=\frac{f-ey}{d}


Next we need to substitute x into the first equation, so:


a\left(\frac{f-ey}{d}\right)+by=c


So, the conclusion is that from this last equation the result we can get is y. Then, by substituting the value of y in the first or second equation we can get x.

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Bill spent $42 on fruit at the grocery store. He spent a total of $60 at the store. What percentage of the total did he
Neporo4naja [7]

Answer:

70%

Step-by-step explanation:

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Cheers.

3 0
3 years ago
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Hoochie [10]

Answer:

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3 0
3 years ago
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