SOLUTION: Hi, please help me solve this by substitution method. Thank you! {{{ 2x+y=5 }}} {{{ x^2+y^2=50 }}}

Algebra.Com
Question 1061540: Hi, please help me solve this by substitution method. Thank you!


Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39614)   (Show Source): You can put this solution on YOUR website!
The linear equation will give you to use as a direct substitute.
Answer by MathTherapy(10549)   (Show Source): You can put this solution on YOUR website!

Hi, please help me solve this by substitution method. Thank you! 


2x + y = 5_____y = 5 - 2x ----- eq (i)

 -------- eq (ii)

 ------ Substituting 5 - 2x for y in eq (ii)







(x - 5)(x + 1) = 0 --- Factoring trinomial





y = 5 - 2(5) --------- Substituting 5 for x in eq (i)





y = 5 - 2(- 1) ------- Substituting - 1 for x in eq (i)





 

RELATED QUESTIONS


Please help me solve this by using the substitution method. Thank you! 

{{{ x^2+y^2=90  (answered by josgarithmetic,ikleyn)

 please help me solve by the substitution method this problem x + y = 6
                  (answered by Alan3354)

Please help me solve this problem by Substitution Method {{{x-y=1}}}
{{{x^2-xy-y^2=-5}}}  (answered by sudhanshu_kmr,Edwin McCravy)

Please help me solve this question 
-x+y=1
2x+y=-2
Solve using substitution... (answered by BGutridge)

hi, can you please help me solve this problem:

using the elimination method:

1.... (answered by MathLover1)

Hi, please help me solve this by using the addition method. Thank you so much!

{{{... (answered by Edwin McCravy)

Please help me solve this equation:
Solve each system addition. Determine whether the... (answered by mananth)

Can you Please Help Me Solve This equation by using the substitution method?

-x+y+0... (answered by jim_thompson5910)

Solve each system by the substitution method (please):

2x - y = -5
x + 5y = 14... (answered by oberobic)