Posted by Jen on .
You are given two equations which are both true, and you are asked to solve for both x and y. You plan to solve this set of equations by substituting part of one equation into the other so you end up with an equation that contains only x's or only y's. The first thing you need to do in this procedure is to______?
a. rearrange one of the equations so
that either x or y is alone on one
side of the equals sign.
b. add the total number of x's and y's
in both equations
C. make sure that all x's and y's have
a numberical coefficient greater
D. cross multiply
I believe the answer is A