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Q: Solve using substitution x minus y equals 2 and x plus y equals -4?

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You cant solve it unless it is an equation. To be an equation it must have an equals sign.

Solve using the quadratic formula

If you mean: x+7y = 39 and 3x-2y = 2 Then by substitution: x = 4 and y = 5

You'd need another equation to sub in

Since the second equation is already solved for "y", you can replace "y" by "9" in the other equation. Then solve the new equation for "x".

It can be solved by using the quadratic equation formula.

y=2x+9 and y=x+6

If: x+y = 8 and 2x-y = 5 Then by adding the equations together: 3x = 13 or x = 13/3 By substitution into the original equations: x = 13/3 and y = 11/3

Solve this system of equation using substitution 2x plus 6y equals 24 and 3x-2x equals 24 ?Improved Answer:2x+6y = 243x-2x = 24 => x =24Substitute the value of x into the top equation to find the value of y:48+6y = 246y = 24-486y = -24y = -4So: x = 24 and y = -4

You can solve lineaar quadratic systems by either the elimination or the substitution methods. You can also solve them using the comparison method. Which method works best depends on which method the person solving them is comfortable with.

You solve this by theoretically diverting the hypotenuse of the x divided by the overall beneficial procedure of y

In that instance, it means that the lines never touch.

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