SOLUTION: I need help with this one can't understand it at all...Thanks:) Page 490 Number 8 2x+y=4 3x-2y=-1

Question 145184This question is from textbook Beginning Algebra
: I need help with this one can't understand it at all...Thanks:)
Page 490
Number 8
2x+y=4
3x-2y=-1 This question is from textbook Beginning Algebra

Answer by vleith(2983) (Show Source): You can put this solution on YOUR website!
This is a bit different that the last one. The last one had the coefficients of one the variable equal. This one does not. So we need to make that happen before we add.
2x+y=4
3x-2y=-1
Lets make the first equation's y terms have the same absolute value.
2x + y = 4
4x + 2y = 8 now we can see that the 2y in this equation is the same absolute value as the -2y in the second equation. So we can add them easily.
4x + 2y = 8
3x - 2y= -1
------------
7x = 7
x = 1
Solve for y
4 + 2y = 8
2y = 4
y=2
Getting the idea now?

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