SOLUTION: the question is X+y = 13 & 22x+36y=356 university of phoenix elementary and intermediate algebra

Question 91723: the question is X+y = 13 & 22x+36y=356 university of phoenix elementary and intermediate algebra
Answer by tutorcecilia(2152) (Show Source): You can put this solution on YOUR website!
The problem is asking you to solve the system of equations or do these two equations have a common point (x, y)?
There are several methods you can use to solve systems of equations:
1. substitution
2. elimination
3. matrix
I do not know which method you are to use, but here is the "substitution" method:
x+y=13
x=-y+13 [Solve for the x-term]
22x+3y=356 [substitute the first equation back into the second equation]
22(-y+13)+36y=356
-22y+286+36y=356 [solve for the y-term]
14y+286=356
14y=356-286
14y=70
y=5 [plug (y=5) back into either of the original equation and solve for (x)]
.
x+y=13
x+5=13
x=13-5
x=8
checking: 8+5=13 [checks out]
.
So, the common point or solution to this system of equations is:
(8, 5)

RELATED QUESTIONS
please use foil to find each product (2x-5y)(x+y) the university of phoenix elementary... (answered by jim_thompson5910)

factor each polynomials university of phoenix elementary and intermediate algebra... (answered by checkley75)

find each product (3y2 + 1)(3y2-1) the university of phoenix elementary and intermediate... (answered by checkley75)

university of phoenix elementary and intermediate algebra factor complete the polynomial... (answered by Edwin McCravy)

university of phoenix elementary and intermediate algebra factor complete the polynomial... (answered by checkley75)

please perform the indicated operation (5x-6)(5x-6) the university of phoenix elementary (answered by bucky,Edwin McCravy)

university of phoenix elementary and intermediate algebra factor each trinominal by using (answered by tutorcecilia)

find each quotient university of phoenix elementary and intermediate algebra (-4 power of (answered by edjones)

university of phoenix elementary and intermediate algebra U3- 125V3 factor each... (answered by stanbon,tutorcecilia)