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Susanna Eichmann
Wiki User
∙ 9y ago-x + 2y - 20
On its own this is just a mathematical expression involving two unknowns (x and y).
Make it equal to a value (say zero) and it becomes an equation.
-x + 2y - 20 = 0
After rearranging to make y the subject we have :-
2y = x + 20 . . . which we can amend to show a single y as the subject.
y = ½x + 10.
This represents the equation for a straight line that passes through the points (-20, 0) and (0, 10).
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3x plus 2y equals 20 and 5x-2y equals 1?
3x+2y=20 5x-2y=1 (3x+2y) + (5x-2y)= 20+1 3x+5x= 21....... 8x=21.........x=2 5/8 Subsitute x=3(2 5/8)+ 2y=20........... 7 7/8 +2y=20.........2y= 20- 7 7/8....... y=6 1/16
X - 2y equals -12 x plus 6y equals 20?
x = -4 and y = 4
X plus 2y-6z equals 23?
63 + 20 - 60 = 23
2y x plus 2 equals?
2y(x+2)=
-2y equals x plus 8?
-2y=x+8 is the answer
What is x plus 2y equals?
x + 2y = x + 2y Y and X aren't compatibles.
3x plus 2y equals 20 and 5x-2y equals 1?
3x+2y=20 5x-2y=1 (3x+2y) + (5x-2y)= 20+1 3x+5x= 21....... 8x=21.........x=2 5/8 Subsitute x=3(2 5/8)+ 2y=20........... 7 7/8 +2y=20.........2y= 20- 7 7/8....... y=6 1/16
X - 2y equals -12 x plus 6y equals 20?
x = -4 and y = 4
X plus 2y-6z equals 23?
63 + 20 - 60 = 23
2y x plus 2 equals?
2y(x+2)=
-2y equals x plus 8?
-2y=x+8 is the answer
Factor 2 plus 2y plus x plus xy?
2+2y+x+xy=(x+2)(y+1)
What is the value of x in x plus 2 equals 2y plus 6?
Exactly (2y + 4) .
0 equals x-2y plus 1?
x=2y-1
5x plus 3y-x plus 10-2y?
5x + (3y-x) + (10-2y) = 5x + 3y - x + 10 -2y = 5x - x + 3y - 2y + 10 = 4x + y +10
X equals 2y-3 x equals 2y plus 4?
This means that 2y - 3 = 2y + 4 which is not possible.
X plus 52 plus 2y plus 35 equals 3 solve?
x + 52 + 2y + 35 = 3 x + 2y = 3 - 52 -35 x + 2y = -84 Infinite number of solutions, are you sure you posted the correct equation?
