How do I do systems of Equations- Elimination method

1 answer:

5 0

In the elimination method you either add or subtract the equations to get an equation in one variable.

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Rus_ich [418]

2(x4) = 35 - (7-4x)
+4x
2(x8)= 28
/2 /2
8x = 14

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3 years ago

schepotkina [342]

1.) (-2,3)
2.) a=175/43 b= -70/43
3.)(7,3)

I believe i am right
I haven't one this in a long time
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3 years ago

Zigmanuir [339]

What is y+x?

Answer:

= x+y

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3 years ago

ollegr [7]

Answer:

cosA = $\frac{5}{13}$

Step-by-step explanation:

cosA = $\frac{adjacent}{hypotenuse}$ = $\frac{AC}{AB}$ = $\frac{5}{13}$

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3 years ago

boyakko [2]

Let $c$ be the price of an ear of corn. So, six ears of corn cost $6c$ . We thus have

$6c = 1.80$

Divide both sides by 6 to get

$c = \dfrac{1.80}{6} = 0.3$

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3 years ago