Respuesta :
Answer:x=-5,y=-8
Step-by-step explanation:solving the equation by elimination method,
multiply equation 2 by 1.4
Then add both equations together
-12.2x=61, x= -5
y is solved by direct substitution into any of the equations. y = - 8
Answer:
The value of X and Y are (-5,-8)
Explantion:
For the given set of liner equations,
[tex]-8 x-7 y=96-(1)[/tex]
[tex]-3x + 5y = -25 - (2)[/tex]
multiply the equation (1) with 5,
we get [tex]-40x - 35y = 480 - (3)[/tex]
multiply this equation (2) with 7 we get
[tex]-21x + 35y = -175-(4)[/tex]
Solving the above equations (1) and (2) we get
[tex](-40x - 35y) + (-21x + 35y) = 480 + -175[/tex]
[tex]-61x = 305[/tex]
[tex]x = -5[/tex]
Use this value for x in the equation (2) to find y.
[tex]-3(-5) + 5y = -25[/tex]
[tex]15 + 5y = -25[/tex]
[tex]5y = -40[/tex]
[tex]y = -8[/tex]
