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Solve the system by substitution.
8x +y = 4
-23 – 8= y

Sagot :

Rspill6idn

Answer:

(2,-12)

Step-by-step explanation:

Correct equations:

  8x+y=4

 -2x-8=y

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Rearrange the first equation:

8x+y=4

y=4-8x

Now use this value of y in the second equation:

-2x-8=y

-2x-8=4-8x

6x = 12

x = 2

When x = 2:

y=4-8x

y=4-8(2)

y = -12

(2,-12)

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One can also graph the two equations and find the point they intersect.  See the attached graph.

View image Rspill6
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