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fredd [130]
3 years ago
5

How do I use the system of elimination on a problem like y=5x-8 and y=-6x+3? I don't know how to get a least on one the variable

s to be the same so I can eliminate.
Mathematics
1 answer:
hoa [83]3 years ago
8 0
Multiply the first equation by 6 and the second by 5 and add them together
6y=30x-48
5y=-30x+15
then
11y=-33
y=-3
x=1
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<h2>Answer:</h2>

\boxed{R_{4}=20\Omega}

<h2>Step-by-step explanation:</h2>

If resistors are in series, so the current  I is the same in all of them. In this problem we have four resistors. So, we can get a relationship between the Equivalent resistance  of series combination and the four resistors as follows:

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