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

The substitution method: solve for x in the second

Ответ:

queenskyyt

12.03.2022

Mathematics

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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Ответ:

izzyisawesome5232

26.04.2023

Mathematics

0.65 cents

Step-by-step explanation:

12x4=48 total

31.20/48 = 0.65 cents each

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

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