HELP PLEASE!!! ALGEBRA PROBLEM!!?
I have one problem left I can not figure out...
Solve the system by the elimination method
135x+45y=-13
81x-75y=17
What is the solution set of the system? {( )}
(simplify the answer. Type an ordered pair.)
I just need this one problem, if someone could work it out and show the answers it would be very helpful, I will also take answers only lol 
Correct answers will get the "Best Answer"
Thank you!
Comments
STEP 1
135x + 45y = -13 | x -75 |
81x - 75y = 17 | x 45 |
'''''''''''''''''''''''''''''''''''''''''''''''' -
STEP 2
10125x - 3375y = 975
3645x - 3375y = 765
''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' -
6480x = 210
x = 210/6480
x = 7/216
STEP 3
81x - 75y = 17
81(7/216) - 75y = 17
2.625 - 75y = 17
-75y = 14.375
y = -14.375/75
y = -23/120
ANSWER
x = 7/216
y = -23/120
135x + 45y = -13 (multiply to 5) 675x + 225y = -65
81x - 75y = 17 (multiply to 3) 243x - 225y = 51
-------------------------------- (+)
918x = -14
x = -7/459
substitution:
243(-7/459) - 225y = 51
-225y = 930/17
y= 62/255
x= -7/459 , y= -62/255