nolangriffin
12.08.2020 •
Mathematics
Solve 2x+2y=6 and 3x-2y=11
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Ответ:
x = 17/5
y = -2/5
Step-by-step explanation:
2x + 2y = 6
3x - 2y = 11
sum both equations results
5x + 0 = 17
x = 17/5
2x + 2y = 6
2*17/5 + 2y = 6
34/5 + 2y = 6
2y = 6 - 34/5
2y = 30/5 - 34/5
2y = -4/5
y = (-4/5)/2
y = -2/5
verify:
3x - 2y = 11
3*17/5 - 2*-2/5 = 11
51/5 + 4/5 = 55/5
51 + 4 = 55
Ответ:
Not possible
Step-by-step explanation:
A polygon is defined as ANY closed shape made of line segments. There is no closed shape that is not a polygons and is made of line segments.