How do you solve by substitution # y=3x# and #x+y=-5#?
2 Answers
Explanation:
Using
Then simplify and rearrange to make
Then substitute this value of
To double check your answer, substitute values of
Explanation:
As we see
So
Using
Then simplify and rearrange to make
Then substitute this value of
To double check your answer, substitute values of
As we see
So