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Rama09 [41]
3 years ago
12

Solve the system

Mathematics
1 answer:
Ber [7]3 years ago
6 0

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

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