Saturday

December 20, 2014

December 20, 2014

Posted by **kailin** on Friday, July 15, 2011 at 1:33am.

x = -2y + 6

2x + 2y = 16

- math -
**Reiny**, Friday, July 15, 2011 at 7:50am1 2 6

1 1 8

1st - 2nd

1 2 6

0 1 -2

1st - 2x2nd

1 0 10

0 1 -2

so x = 10

y = -2

(using matrices to solve this simple system is like using a sledge-hammer to crack a peanut.

Substitution would have been so easy)

**Answer this Question**

**Related Questions**

Math - solve the following system of equations using matrices 4x-2y=7 7x+y=13

math - solve the following system of the equations using matrices 10x-5y=4 7x+y=...

College Algebra - Solve the system of equations using matrices. If system has no...

college math - system of equations: solve the following system of operations ...

Pre-Calculus/Trigonometry - Solve the following system of equations ...

Pre-Calculus/Trigonometry - Solve the following system of equations ...

Discrete Math - I am really stuck on these problems. I've worked a lot of them ...

MATH - system of linear equation The sum of 3 numbers is 14 the largest is 4 ...

College algebra - system of linear equation The sum of 3 numbers is 14 the ...

maths - solve the following simultaneous equations using matrices 3x-6y=24 and -...