please can you give the answer of this, 8x+5y=23 -8x+9y=-19

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turciosnorma32 turciosnorma32

05-03-2021
Mathematics

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please can you give the answer of this, 8x+5y=23 -8x+9y=-19

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jasmines cd collection is 3/8 jazz 1/4 rap and the rest is rock music what is the fraction of rock music

What value of x makes the equation true ? 4(2x-4)=16

jasmines cd collection is 3/8 jazz 1/4 rap and the rest is rock music what is the fraction of rock music

All of the following expressions have a value between 0 and 1, excepta. \frac{(-3^{7})}{(-3)^9}b. 4^{-10}× 4^{6}c. \frac{(8^3)^3}{8^{-4}} d. ( \frac{2}{5} ^{8})

kica226 kica226 · Answer 1 · 2021-03-05T00:30:09+01:00

kica226 kica226

05-03-2021

8X+5Y=23
8X=23-5Y

-8X+9Y= -19 multiple all by -1
8X-9Y=19
8x=23-5y
Plug that in
23-5Y-9Y=19
-14Y=19-23
-14Y= -4
Y=1

8X=23-5Y
8X=23-5•1
8X=23-5
8X=18
X=18/8
X=9/4

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