Question

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

Answer 1

x=3 y=5/2

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