Edwin's solution:
hi please help me thank you very much. Which of the following is an intermediate step if the given equations are to be solved by elimingating one unknown by addition?
the answers are
A)
B)
C)
D)
The correct answer is A) because
when added vertically, the terms and
will cancel out like this:
A)
and the sum adding vertically will be the equation:
=
which is easily solved for .
Edwin