Web Analytics

Questions › Math

Math Asked by a SnapAndSolve user · about 1 hour ago

Solve the system of equations. 4x + 5y = 20 y = -x + 1 (15, -14) (15, -16) (-15, 16) (-15, -14)

Solve the system of equations.
4x + 5y = 20
y = -x + 1
(15, -14)
(15, -16)
(-15, 16)
(-15, -14)

Answer

To solve the system of equations, substitute y = -x + 1 into the first equation:

  1. 4x + 5(-x + 1) = 20
  2. 4x - 5x + 5 = 20
  3. -x + 5 = 20
  4. -x = 15
  5. x = -15

Now substitute x = -15 into y = -x + 1:

  1. y = -(-15) + 1
  2. y = 15 + 1
  3. y = 16

The solution is (-15, 16).

Have a similar question?

Snap a photo of your homework and get a step-by-step answer in seconds. You can ask follow-up questions until it makes sense.

Solve my question free Math help Find a math tutor

More math questions