SOLUTION: how do i solve 5r-s=5 and -4r+5s=17 get back to me asap plz

SOLUTION: how do i solve 5r-s=5 and -4r+5s=17 get back to me asap plz

Algebra.Com

Question 607613: how do i solve 5r-s=5 and -4r+5s=17 get back to me asap plz

Answer by scott8148(6628) (Show Source): You can put this solution on YOUR website!
from the 1st equation ___ 5r - 5 = s

substituting into the 2nd equation ___ -4r + 5(5r - 5) = 17 ___ -4r + 25r - 25 = 17 ___ 21r = 42

solve for r, then substitute back to find s
RELATED QUESTIONS
i need to solve using substitution. how do i go about solving this problem: 5r-s=5... (answered by scott8148)

How do you solve 5r-s=5,-4r+5s=17 for substitution... (answered by rfer)

I need help writing out this algebra problem, 5r-s=5, -4r+5s=17 like how do I set it up? (answered by ad_alta)

SOLVE BY ELIMINATION METHOD 5R-4S=-17... (answered by dabanfield)

Hello I am trying to do my math homework and there are still questions that I just don't... (answered by Alan3354)

5r-4s= -6 and... (answered by oberobic)

I got the problem: 5r-s=5 -4r+5s=17 on my homework and every time I try... (answered by jim_thompson5910)

can you show me steps on how to solve... (answered by Fombitz)

How do you multiply {{{ (5r)(-4r^6s^2)(3r^5s^4) }}}... (answered by josgarithmetic)