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Solve for x:
3x + y = 9 is the same as -3x + 9 = y
Since you now know the equation for y you can plug it into the first equation:
3x + (-3x + 9) = 9
After solving, you will see that x cancels out and that 9 = 9.
Solve for y:
3x + y = 9 is the same as 3 - y/3 = x
Since you now know the equation for x you can plug it into the first equation:
3(3 - y/3) + y = 9
After solving, you will also see that y cancels out and that 9 = 9.
The Answer:
There are actually two posibble answers:
1.) y = 9 and x = 0
If you plug the numbers in then you will get 3(0) + (9) = 9
The answer is 9 = 9
2.) y = 0 and x = 3
If you plug the numbers in then you will get 3(3) + (0) = 9
This will also give you the answer 9 = 9
Add your answer:
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-2x plus 3y equals 9?
y=-2/3x
Are y equals -3x plus 2 and y plus 3x equals 4 parallel?
Their graphs are.
3x - y equals 9 2x plus y equals 6?
3x-y = 9 2x+y = 6 Add both equations together: 5x = 15 x = 3 and y = 0
Y equals 5x plus 18 y equals 2x plus 9?
5x+18 = 2x+9 5x-2x = 9-18 3x = -9 x = -3 and y = 3
What is paraellel to y equals 3x plus 1?
y = 3X - 1
What does y equals 3x plus y and y equals x-9 equal?
y = 3x + y => x = 0then y = x - 9 => y = 0 - 9 = -9.
What is the slope and y-intercept of y equals -3x plus 9?
slope: -3 y-intercept: 9
Does y plus 3x equals 9 have a slope of -3?
Yup
-2x plus 3y equals 9?
y=-2/3x
3x minus y equals 9 solve for y?
3x-y=9 y=3x-9
Are y equals -3x plus 2 and y plus 3x equals 4 parallel?
Their graphs are.
What is the slope-intercept form of 3x plus 2y equals 9?
3x+2y=9 2y=9-3x y=-1.5x-4.5
3x - y equals 9 2x plus y equals 6?
3x-y = 9 2x+y = 6 Add both equations together: 5x = 15 x = 3 and y = 0
Y equals 5x plus 18 y equals 2x plus 9?
5x+18 = 2x+9 5x-2x = 9-18 3x = -9 x = -3 and y = 3
What is the orded pair for 3x plus y equals -1 5x-y equals 9?
3x+y=-1 y=-1-3x5x-y=9 5x-(-1-3x)=95x+1+3x=98x=8x=1y=-1-3(1)y=-4(1,-4)
For x plus y plus z equals 9 2x-y-z equals -6 and x plus y-z equals 1 what is the echelon matrix?
3x + 2 = 82
Y equals 4X2 plus 3x plus 8?
y=4x2+3x+8
