Ok, now I am stuck.
-y=11
2x+y=-2
Dang this has been more than 20 years ago for me.
how do I proceed with this one. The second part does not have an in it.
Daughter preparing for test.
+ =48
+ =35
----------------------------------------
+ =-144
+ =140
-----------------------------------------
=-4
=4
y=+-2
+ =48
=36
=9
x=+-3
(I think I answered the first part of the question while typing it.)
I know I will have a question in a moment
2x+y=-2
2x+2=-y
Ok...I am dumb. I just follow the pattern in her study guide. How do I solve for Y?
Even if I get to where I know what is going on then I have to explain it to her. She works as a nurses aid full time and wonders what she will do with this.
Hi there,
i thought you were supposed to solve by elimination?
you can elimate either x or y by using an appropriate factor.
multiplying equation 2 by 3 and equation 1 by 2 gives you
subtract to elimate the common term.
so
now plug 9 into the equations to solve for y
hi,
are you sure its not squared?
so
so solve
dont forget to solve for the values in this and previous case. The discriminant on this one is > 0 and is a perfect square so will factor to integers.