Answered

IDNLearn.com offers a user-friendly platform for finding and sharing knowledge. Find the solutions you need quickly and accurately with help from our knowledgeable community.

Show and explain how replacing one equation by the sum of that equation and a multiple of the other produces a system with the same solutions as the one shown.8x + 7y = 394x - 14y = -68

Sagot :

Contexto1019idn

Answer:

Solution of the given equation by elimination method is x=0.5 and y=5.

Step-by-step explanation:

8x + 7y = 39 --------------(1)

4x - 14y = -68 ------------(2)

Multiply the equation 2 by -2, then add the equations along.

Equation (2) multiply by -2 :  -8x +28y = 136

8x + 7y = 39 --------------(1)

-8x +28y = 136-----------(2)

Add these equations to eliminate x:

0x+35y=175

35y=175

y=5

Substitute y=5 in 8x+7y=39:

8x+(7)(5) =39

8x+35=39

8x=39-35

8x=4

X=8/4

x=0.5

Solution of the given equation by elimination method is x=0.5 and y=5.

Know more about elimination method: https://brainly.com/question/11764765

#SPJ4

We appreciate your contributions to this forum. Don't forget to check back for the latest answers. Keep asking, answering, and sharing useful information. IDNLearn.com is committed to your satisfaction. Thank you for visiting, and see you next time for more helpful answers.