x=15-2y
5(15-2y)-3y=10
75-10y-3y=10
-13y=-65
y=5
x=15-2•5
x=15-10
x=5
(5;5)
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x=15-2y
5(15-2y)-3y=10
75-10y-3y=10
-13y=-65
y=5
x=15-2•5
x=15-10
x=5
(5;5)