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kodGreya [7K]
3 years ago
12

I DONT KNOW HOW TO DO THIS HELP MEH Solve the system by substitution. 3x-8y=-50 6y+=x

Mathematics
1 answer:
Elden [556K]3 years ago
4 0

Answer:

substitution method is tricky until u get the hang of it. 6y=x so 3x-8y=-50 can be rewritten as 3(6y)-8y=-50.

Step-by-step explanation:

3x-8y=-50.........(1)

6y= x ..............(2)

<u>Substituting x = 6y in (1)</u>

3(6y) - 8y = -50

<u>multiply 3(6y)</u>

18y - 8y = -50

<u>subtract 8y from 18y</u>

10y = -50

<u>divide to get y alone</u>

y = -50/10

y = -5

<u>now substitute. you know what y is. 6y=x / 6(-5)=x</u>

<u>solve :) </u>

6y = x

6(-5) = x

-30 = x

x = -30

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