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elena-s [515]
3 years ago
13

-x-7y=9 -x+9y=-23 How do I answer it

Mathematics
1 answer:
ipn [44]3 years ago
6 0
Change one "x" to a positive by multiplying everything to a -1. Then add the equations to make one, solve for "y". After you get "y" plug it in to get "x". Hope that helps.
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Which point represents where<br> the mean of this data occurs on<br> this normal curve?
WITCHER [35]

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Step-by-step explanation:

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Find the diameter of a dinner plate whose circumference is about 19 inches
vodka [1.7K]
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what is the common denominator of 1 / a + 1 / B in the complex fraction 1 / a - 1 / B / 1 / 8 + 1 / B​
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4 years ago
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Morgarella [4.7K]
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8 0
4 years ago
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