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2 years ago

Solve the system of equations. −5x+8y=0 -7x-8y=-96

Mathematics

2 answers:

Evgen [1.6K]2 years ago

8 0

Answer:

-5x+8y-7x-8y=-96

-12x =-96

X= 8

if X=8,

(-5×8)+8y=0

8y=40

y=5

x=8

y=5

Zielflug [23.3K]2 years ago

8 0

$\huge{ \mathrm{ \underline{Answer :}}}$

The given equations are : -

−5x + 8y = 0 - [1]

-7x - 8y = -96 -[2]

<h3>Add the equations :</h3>

$\mathrm{- 5x + 8y + (- 7x - 8y) = 0 + (- 96)}$

$\mathrm{- 5x + 8y - 7x - 8y = - 96}$

$- 12x = - 96$

$x = 8$

_____________________________

<h3>plugging value of x in [1] :</h3>

$- 5x + 8y = 0$

$( - 5 \times 8) + 8y = 0$

$- 40 + 8y = 0$

$8y = 40$

$y = 5$

_____________________________

$\mathrm{ \#TeeNForeveR}$

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