Answered

At Westonci.ca, we provide reliable answers to your questions from a community of experts. Start exploring today! Join our platform to connect with experts ready to provide precise answers to your questions in different areas. Join our platform to connect with experts ready to provide precise answers to your questions in different areas.

7x + 5y = 29
21x - 25y = -33

Sagot :

konrad509
[tex]7x + 5y = 29|\cdot5\\ 21x - 25y = -33\\\\ 35x+25y=145\\ \underline{21x-25y=-33}\\ 56x=112\\ x=2\\\\ 7\cdot2+5y=29\\ 14+5y=29\\ 5y=15\\ y=3\\\\ \boxed{(x,y)=(2,3)} [/tex]
anijlin
    5*(7x + 5y = 29) 
+  21x - 25y = -33

    35x + 25y = 145
+  21x - 25y = -33
   56 x + 0y = 112

56x = 112
x = 2

Plug the x back in to the original equation to solve for y. 

7x + 5y = 29
7(2) + 5y = 29
14 + 5y = 29
5y = 15
y = 3

21x - 25y = -33
21(2) - 25y = -33
42 - 25y = -33
-25y = -75 
y = 3

x = 2 and y = 3
Thank you for choosing our service. We're dedicated to providing the best answers for all your questions. Visit us again. We hope our answers were useful. Return anytime for more information and answers to any other questions you have. Stay curious and keep coming back to Westonci.ca for answers to all your burning questions.