jelly18
jelly18
25-03-2016
Mathematics
contestada
Linear equations 2x+y=20
6x-5y=12
Respuesta :
Hey1ItsHeather
Hey1ItsHeather
25-03-2016
Step1:
2x+y=20
6x-5y=12
Step 2:
(2x+y=20)*5
6x-5y=12
Step 3:
10x+5y=40
+6x -5y=12
16x=52
X=3.25
Step 4: Plug into equation
y=-1.5
Answer Link
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