Asked by Anonymous
How would you solve these systems? I need help
1. X=3
2x-4y=5
2. X=3
4y=2x+18
3. Y=3
4y=2x+18
1. X=3
2x-4y=5
2. X=3
4y=2x+18
3. Y=3
4y=2x+18
Answers
Answered by
Anonymous
1. Plug x = 3 into the equation 2x - 4y = 5 and solve.
Do the same for 2 and 3.
Do the same for 2 and 3.
Answered by
Anonymous
It's substitution
Answered by
Anonymous
I know it is but how would you do that's what I'm asking.
Answered by
Damon
If you know that x = 3 for example
Then use 3 instead of x in the next equation
and all will be well.
Then use 3 instead of x in the next equation
and all will be well.