East-CentricArch.EU Logo East CentricArch
Sign in
Ask The Question
English French Spanish Portuguese Polish Romanian
Mathematics
brandonsmith
Feb 3, 2018, 11:33:40 PM
36

solve using the substitution and elimination method 3a-12b=9 4a-5b=3 can someone please help?

+3
(1) Answers
Brittneyy
Feb 4, 2018, 1:02:26 AM

3a-12b=9 => a = 4b + 3; but, 4a-5b=3 => 4(4b + 3) -5b = 3 => 11b = -9 => b = -9/11 => a = -36/11 + 3 = -3/11;

Add answer
Sign in Sign up
Related Questions
solve using the substitution and elimination method 3a-12b=9 4a-5b=3 can someone please help?
Solve: 4a+2c=70 8a+12c=196 Use the elimination method or substitution method to solve Enjoy :)
Solve the following system using the elimination method: 2a+2b=4 and 4a-3b=8
Solve this system of equations using the addition method. 4a - 5b = 7 4a + 5b = 17 type the co...
Solve the following system using the substitution, elimination, or graphing method for the x coor...
what is the solution? solve using elimination or substitution.
Solve using substitution method. 3×-4y=18 and 2x + y = 1
Solve using the elimination method. 8x-3y=3 3x-2y=-5
Please help.... Which method would be the simplest way to solve the system? 7x + 5y = 19 ...
SOLVE THE SYSTEM OF EQUATIONS USING THE ELIMINATION METHOD {3/4x-2/7y=-5 {5/8x+1/4y=-3/4 Please...
Categories
  • Advanced Placement (AP)
  • Arts
  • Biology
  • Business
  • Chemistry
  • Computers and Technology
  • English
  • French
  • Geography
  • German
  • Health
  • History
  • Mathematics
  • Physics
  • SAT
  • Social Studies
  • Spanish
  • World Languages
Languages: English French Spanish Portuguese Polish Romanian
© 2018-2023 East-CentricArch.EU