Question

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

Answer 1

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

Answer 2

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

The given equations are : -

−5x + 8y = 0 - [1]

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

Add the equations :

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

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

• $- 12x = - 96$

• $x = 8$

_____________________________

plugging value of x in [1] :

• $- 5x + 8y = 0$

• $( - 5 \times 8) + 8y = 0$

• $- 40 + 8y = 0$

• $8y = 40$

• $y = 5$

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$\mathrm{ \#TeeNForeveR}$