Y 2 2x 2 4

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Question 565099: y=4x-2
y=-2x+four
Answer by Leaf West.(135) (Show Source):
You tin put this solution on YOUR website!
1. Kickoff, change the equations so that if one is either added or subtracted from the other, one of the variables (x or y) would cancel out. For example, you might modify 2y = x - iv to 4y = 2x - 8 and so that when added to -4y = 3x + 7, the 4y and -4y would cancel out. In your equations, this is not necessary because when y and y are subtracted, they abolish i some other out.
2. Subtract/add your equations. In your case, yous would subtract so that the y's would cancel out.
y = 4x - 2
-(y = -2x + iv)
==> 0 = 6x - six
3. Find the value of the non-canceled out variable.
0 = 6x - 6
+6 +half dozen
6 = 6x
1 = 10
iv. Plug this value for x into one of the equations (information technology does non matter which one) and solve for y.
y = 4x - 2
y = 4(i) - 2
y = 4 - 2
y = 2
five. You at present have your 10 and y values. Simply plug them into coordinate form (x,y) for your reply. ==> (1,2)