potratzkallee potratzkallee

04-01-2019
Mathematics

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 :

AlbertThomas AlbertThomas

05-01-2019

Multply both equations by 2 leaving

x + 2y = 8
x - 2y = -2

Add the equations giving

2x = 6
x = 3

Substitute 3 in the top equation

3 + 2y = 8
2y = -5
y = -2.5

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