Asked by Bryan
Solve by Substitution method.
15x-20y=-7
15y=4+5x
15x-20y=-7
15y=4+5x
Answers
Answered by
RickP
1) Solve the first equation for either variable.
2) Every where in the second equation that the solved-for variable appears, replace it with the value it is equal to.
3) You now have only 1 variable in the second equation. Solve the second equation for that variable and you will get a numeric value for it.
4) Every where in either of the original equations that the variable you just found a numeric value for exists, plug in the numeric value instead.
5) You can now solve that equation for the other variable, obtaining a numeric value for it also.
2) Every where in the second equation that the solved-for variable appears, replace it with the value it is equal to.
3) You now have only 1 variable in the second equation. Solve the second equation for that variable and you will get a numeric value for it.
4) Every where in either of the original equations that the variable you just found a numeric value for exists, plug in the numeric value instead.
5) You can now solve that equation for the other variable, obtaining a numeric value for it also.
Answered by
Anonymous
5x-15y=4
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.