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samiam61
24.03.2020 •
Mathematics
WILL GIVE A LOT OF POINTS
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Ответ:
x=-2
y=8
Step-by-step explanation:
4x+2y = 8
4x+3y = 16
Subtract the first equation from the second equation
4x+3y = 16
-4x -2y = -8
0x +y = 8
y =8
Substitute this into the first equation to find x
4x+2(8) = 8
4x+16 = 8
Subtract 16 from each side
4x+16-16 = 8-16
4x = -8
Divide each side by 4
4x/4 =-8/4
x =-2
Ответ:
x = -2, y = 8
Step-by-step explanation:
4x = 8 - 2y
4x = 16 - 3y
8 - 2y = 16 - 3y
y = 8
4x = 8 - 2(8)
4x = -8
x = -2
Ответ:
first one no second one no third one no frouth no fifth yes last one no