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adamkinney9345
22.07.2019 •
Mathematics
3x + 2y = 12 2x - 3y = 21 question: a. write the equations in slope-intercept form. (show your work) b. graph the equations. c. estimate the solution to the pair of equations. can u plz hurry
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Ответ:
2y=-3x+12
y=-3/2x+6
2x-3y=21
-3y=-2x+21
Y=2/3x-7
To fond the solution make the equations equal to eachother and solve for x
-3/2x+6=2/3x-7
-3/2x-2/3x=-7-6
-13/6x=-13
x=6
Sub x into one of the equations to find y
Y=-3/2*6+6
Y=-9+6
Y=-3
Therefore the solution is (6,-3)
The graphs are above.
Hope this helps.
Ответ:
But I hope u have a great Christmas