SOLUTION: can you please help me solve this equation...
10r-9s=18
6s+2r=1
its either a substitution problem or you add or subtract..
i have tried and tried to get this answer but i
Algebra.Com
Question 191764: can you please help me solve this equation...
10r-9s=18
6s+2r=1
its either a substitution problem or you add or subtract..
i have tried and tried to get this answer but i can't seem to get it..
thank you so much for helping!
Answer by user_dude2008(1862) (Show Source): You can put this solution on YOUR website!
6s+2r=1
2r=1-6s
10r=5-30s
---------
10r-9s=18
5-30s-9s=18
5-39s=18
-39s=13
s=-1/3 <--------Answer # 1
10r=5-30s
10r=5-30(-1/3)
10r=5+10
10r=15
r=15/10
r=3/2 <--------Answer # 2
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