SOLUTION: 12x+2y=-4 -5x+y=20

Question 829707: 12x+2y=-4
-5x+y=20

Answer by TimothyLamb(4379) (Show Source): You can put this solution on YOUR website!
---
12x+2y=-4
-5x+y=20
---
copy and paste the above linear system in standard form into this matrix-method solver:
https://sooeet.com/math/system-of-linear-equations-solver.php
---
solution:
x = -2
y = 10
---
system matrix
12 2
-5 1
---
inverse of system matrix
0.045454545 -0.090909091
0.22727273 0.54545455
---
determinant of system matrix = 22
---
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
RELATED QUESTIONS
Solve the system of equations 5x + 2y = 8 12x + 6y = 20 (answered by Alan3354,jim_thompson5910)

y^2+12x=2y-13 (answered by josgarithmetic,MathTherapy)

5x-2y=4... (answered by Edwin McCravy)

5x-2y<10 x+... (answered by HyperBrain)

3x-y=3... (answered by stanbon)

5x-2y=4 x+2... (answered by oberobic)

Solve For y.... (answered by MathLover1)

Y=5x-9 -x-2y=-4 (answered by TimothyLamb)