Y = - X + 3
You must zero out the Y
- X + 3 = 0
- x = - 3
X = 3
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If you graphed the original equation you would see that.
You cannot solve one linear equation with two variables.
7
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".
Subtract two from both sides and you are left with X equals -5
you need to find the value of X first before you can solve this equation
Solve the following equation for A : 2A/3 = 8 + 4A
You cannot solve one linear equation with two variables.
To solve an equation with three unknowns, x, y and z, you require 3 independent equations.
z=.3
7
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".
Subtract two from both sides and you are left with X equals -5
You need another equation to make this a linear equation so you can solve for both variables. One equation with two variables is not enough to determine the correct answer.
you need to find the value of X first before you can solve this equation
One linear equation in two variables (x and y) cannot be solved.
-2
I suggest you use the quadratic formula. In this case, a = 1, b = 5, c = 3.