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lions [1.4K]
3 years ago
5

8x = 2y + 5 3x = y + 7 Solve the system of equations by substitution.

Mathematics
1 answer:
jasenka [17]3 years ago
8 0
<span>3x = y + 7
</span><span> y =3x-7
</span>
<span>8x = 2y + 5
</span><span>8x = 2(3x-7) + 5
8x=6x-14+5
8x-6x=-9
2x=-9
x=-4.5

</span><span>8x = 2y + 5
</span>8(4.5)=2y+5
36=2y+5
2y=31
y=15.5
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GuDViN [60]

Answer:

5x - y = 27

Step-by-step explanation:

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3 years ago
Determine whether the given value is a solution of the equation. 36 = k 6 ; k = 6 6 a solution of 36 = k 6 .
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Answer:

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Step-by-step explanation:

After you set you equation up, you have to isolate the given variable. To do that you have to do the recipriocal (6k-multiplying) which would be division. You would divide k = 36 ÷ 6 . that isolates the variable ,which you would then solve. k = 6 .

4 0
3 years ago
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Answer:426.6

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