-2x + y = 2...Equation A
-x + 3y = -4..Equation B
I will solve Equation A for y.
y = 2x + 2
I will now plug 2x + 2 for y in Equation B to find the value of x.
-x + 3(2x + 2) = -4
-x + 6x + 6 = -4
5x = -6 - 4
5x = -10
x = -10/5
x = -2
To find the value of y, replace x with -2 in EITHER given equation.
-2x + y = 2
-2(-2) + y = 2
4 + y = 2
y = 2 - 4
y = -2
The answer is x = -2 and y = -2 which can be written as a point (-2,-2).
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