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Earn +20 ptsQ: What is the Evaluate Dy for -4x 7y 1 25 2x 5y?
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solv by cramr's rule [ 2x - 5y ] = 2 , [-4x + 10y ] = 1?
solv by cramr's rule [ 2x - 5y ] = 2 , [-4x + 10y ] = 1
What is the sum or difference of 4x-5y 3 2x 7y-7?
There is x left. [One x]
What is 2x-3y equals -11 y equals 4x-3?
You have 2 equations and 2 unknowns so you can solve 2x-3y = -11 y = 4x -3 2x - 3y = -11 -4x + y = -3 multiply 1st equation by 2 both sides: 4x-6y = -22 -4x + y = -3 add: -5y = -25 y = 5 substitute y = 5 into either equation: -4x+y = -3 -4x +5 = -3 -4x = -8 x = 2
2x-3y-2 y-4x 24?
I think you are asking for a simplifaction of 2x-3y-2y-4x=24 If so, combine like terms and we have -2x-5y=24. This is an equation of a line and there are infinite solutions. The solutions are all the points on the line.
What is the slope-intercept form of the equation -2x 5y-15?
0 = -2x + 5y - 15 -5y = -2x - 15 y = 2x/5 + 3
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