anonymous
  • anonymous
I NEED HELP.HOW DO I SOLVE THIS SOLVING BY SUBSTITUCION 5X+3Y=0 X-3Y=-18
Mathematics
  • Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
jamiebookeater
  • jamiebookeater
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
Owlfred
  • Owlfred
Hoot! You just asked your first question! Hang tight while I find people to answer it for you. You can thank people who give you good answers by clicking the 'Good Answer' button on the right!
anonymous
  • anonymous
substitution method = substitute... from your second eq: x=3y-18 substitute value of x in first eq: 5*(3y-18)+3y=0 solve it for y, then find x... let me know if there is a problem :)
anonymous
  • anonymous
solve the second equation for x since it has a 1x as the number in front of the variable: x = 3y -18 plug the (3y - 18) in place of x in the first equation. (MAJOR RULE: You must always substitute into the other equation!!): 5(3y-18) +3y = 0 distribute: 15y - 90 + 3y =0 combine like terms and solve: 18y = 90 y = 5 Then plug in 5 for y in EITHER of the original equations. Choose the easier one: x - 3(5) =-18 then solve for x: x - 15 = -18 x = -3 Final answer: (-3, 5) you can check by plugging x and y into both equations to verify that it works for both. if it does, it has to be the right answer.

Looking for something else?

Not the answer you are looking for? Search for more explanations.