SOLUTION: How do i solve the equation to see if it is a solution for an ordered pair, I don't understand the substitution or how to substitute what? My equation I have to see if it is a tru

Question 290366: How do i solve the equation to see if it is a solution for an ordered pair, I don't understand the substitution or how to substitute what? My equation I have to see if it is a true solution or not to:
(3,2); x+2y=7 What do I use to substitute numbers, my text shows it but it is way too confusing for me to understand.
Thanks,
Millie
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
Your equation is x+2y=7
your point is (3,2) where x=3 and y=2
plug 3 in the equation for x and see if 2 comes up for y
3+2y=7
or
plug 2 in for y and see if x comes up 3
x+2*2=7
or
plug 3 in for x and 2 in for y and see if the result is really equal
3+2*2=7
does the left side really equal the right side?
So there are three similar ways to test it for (3,2)

RELATED QUESTIONS
Please show me how to solve this in easy to understand terms.Thanks Solve the system... (answered by jim_thompson5910)

How can you tell if an ordered pair is the solution to a linear equation with two... (answered by solver91311)

Please help me with this problem, I dont understand how to figure it out. Thank you.... (answered by jim_thompson5910)

Sin θ=4/5, cos θ=-3/5 I need to find θ but I don't understand how to solve for it. If (answered by MathLover1)

I hope this is posted in the correct place. I need some help I do not understand how to... (answered by stanbon)

How do i solve or determine whether the given ordered pair is a solution to the system of (answered by Alan3354)

I need help with figuring out how to do a problem like this: Solve the following... (answered by 3788)

Help I cant figure this out!!! Please break it down fo rme so i can understand it.... (answered by stanbon)

Solve the system of equations using the addition (elimination) method. If the answer is... (answered by jim_thompson5910)