kaayleennee
kaayleennee kaayleennee
  • 12-02-2017
  • Mathematics
contestada

Solving linear systems of substitution

Respuesta :

kyleighlauren357
kyleighlauren357 kyleighlauren357
  • 12-02-2017
Example: 2x+2y=8 and 3y+2x=6
Okay so u first want to put on of the equations into a y= form. So let's use 3y+2x=6. Subtract 2x from both sides. 3y=6-2x divide by 3. Y= 6-2/3x or y= -2/3x + 6. Now just plug this new equation in for Y since "y=" into the other equation.
2x + 2(-2/3x + 6) = 8.
Then you would distribute the 2 into the parenthesis and simplify to solve for x.
After you solve for x, plug x into one of the original equations to find y.
Answer Link

Otras preguntas

For many years , Kiev was the the center of Russia. True or false
Help!!!! Add. 7 2/15+ 5 2/3+ 9 13/15 A.21 2/3 B.20 2/3 C.22 2/3 D.21 10/15
what two numbers multiply and get 100 and add and get -29??
Y=2x-5 3x+8y+32=56 What does y and x equal?
What is the function of the relative pronoun in the adjective clause? After two years, I met the friend with whom I had exchanged many letters. A. possessive
Please help, no just giving answer for points please :) Which sentence uses quotation marks correctly? A. When in France, my mother and I visited the Rodin Mu
What is 3m-8=5m+8 simplified
Help!!!! Add. 7 2/15+ 5 2/3+ 9 13/15 A.21 2/3 B.20 2/3 C.22 2/3 D.21 10/15
nuclear power plants produce power that is ?
what is the length of the longer side in this triangle