Question 822242: Use elimination to solve the following system:
13a+5b=-11
13a+11b=7
Answer by TimothyLamb(4379)   (Show Source):
You can put this solution on YOUR website! ---
13a + 5b = -11
13a + 11b = 7
---
first, solve the system using matrices:
---
put the system of linear equations into standard form
---
13x + 5y = -11
13x + 11y = 7
---
copy and paste the above standard form linear equations in to this solver:
https://sooeet.com/math/system-of-linear-equations-solver.php
---
answer:
x= a = -2
y= b = 3
---
now solve by elimination to check the answer:
---
13a + 5b = -11
-13a - 11b = -7
---
add:
-6b = -18
---
answer (same as by matrix method):
a = -2
b = 3
---
Solve and graph linear equations:
https://sooeet.com/math/linear-equation-solver.php
---
Solve quadratic equations, quadratic formula:
https://sooeet.com/math/quadratic-formula-solver.php
---
Solve systems of linear equations up to 6-equations 6-variables:
https://sooeet.com/math/system-of-linear-equations-solver.php
|
|
|
