contestada

solve the system

Also plz show work and what you did and these two equations with x and y the x and y have to be the same in both the equations


0.5x +y=4

0.5x-y=-1
what is the solution

Respuesta :

Answer:

x=3        y=5/2

Step-by-step explanation:

1.   0.5x + y =4

2.  0.5x-y=-1

subtract the 2nd equation from the 1st

0.5x cancels out

2y = 5

y = 5/2


subs y = 5/2 into any one of the equations to find x

0.5x + 5/2 = 4

x = 3


subs to see if right:

(0.5 x 3) +5/2 = 4

(0.5 x 3) -5/2 = -1

Otras preguntas