Question

what is the solution of the system of equations?

Answer 1

Plug them into matrices on your calculator, then do [A]-1[B] to get the answer immediately

Answer 2

can somebody do this for me? I don't have a claculator :/

Answer 3

http://gyazo.com/95b25221e8d0401cba69ce7e10a7bf31.png

Answer 4

That's why this guy thinks division by zero gives infinity, cos he knows nothing apart from how to use his calculator hahaha

Answer 5

I would argue with you, but I don't want to get in trouble for abusing a minor.

Answer 6

There is no trouble bro, as i said as soon as you get into uni you will learn maths, at school you can rely on your calculator.

Answer 7

Wanna see my grades from grad school mf?

Answer 8

1) 2x+2y+3z=-6
2) 3x+5y+4z=3
3) 2x+3y+4z=-10

Subtract 1) from 3) you get y + z = -4
multiply 1) by 3/2 to get 3x + 3y + 4.5z = -9
Subtract 2) from above -2y + 0.5z = -12

Now it's simple you have y + z = -4 and -2y + 0.5z = -12
Rearrange y + z = -4 into y = -4 - z and plug it into the second one
-2(-4-z)+0.5z = -12
8 + 2z + 0.5z = -12
z = -8

y - 8 = -4
y = 4

Plug this into any of the original 3x+5*4+4*-8=3
3x + 20 - 32 = 3
x = 5

Answer 9

Which are the answers which that joker kid got from the calculator. Hope this helps!

Answer 10

thank you :)