Open study

is now brainly

With Brainly you can:

  • Get homework help from millions of students and moderators
  • Learn how to solve problems with step-by-step explanations
  • Share your knowledge and earn points by helping other students
  • Learn anywhere, anytime with the Brainly app!

A community for students.

-2x+5y=19 3x-4=y Solving System of Equation using Substitution.

Mathematics
See more answers at brainly.com
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.

Join Brainly to access

this expert answer

SEE EXPERT ANSWER

To see the expert answer you'll need to create a free account at Brainly

We know that y = 3x-4, so just substitute this fact into the other equation, then solve for x. Use the value of x to solve y.
-2x+ 5(3x-4)=19 -2x+ 15x-20=19 13x-20= 19 cann you find x now?
yes i can

Not the answer you are looking for?

Search for more explanations.

Ask your own question

Other answers:

thanx
Sometimes you won't have a set of equations where one of them is quite so convenient, and you'll have to do a little more algebra to get one variable in terms of another. If your second equation had been 3x-4 = 3y, for example, you wouldn't have quite as obvious a choice of what to substitute where, but the approach would be the same. Pick one variable, solve an equation for it in terms of the other(s), plug it into the other equation(s), repeat as needed. Then go backward to work out the other variables.

Not the answer you are looking for?

Search for more explanations.

Ask your own question