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vazorg [7]
2 years ago
8

To solve this system of equations using substitution, what could be substituted in place of y in the first equation?

Mathematics
1 answer:
Akimi4 [234]2 years ago
6 0
Looking at second equation.. you must put it in y=Mx+b form and so you must add 2x from both side leaving you with 7 +2x or in this case 2x+7
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Answer:

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Step-by-step explanation:

Use the Pythagorean theorem. a^{2} +b^{2}=c^{2}

a and b are the two side lengths

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Plug in the values that you are given.

a^{2} +4^{2} =18^{2}

Solve for x

x^{2} =18^{2} -4^{2}

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2 years ago
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Answer:

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nevsk [136]

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