Question

Help plz this is really hard.
posting prob.

Answer 1

Matrices:
\[\left[\begin{matrix}x^2+1 & 5-y \\ x+y & y-4\end{matrix}\right]=\left[\begin{matrix}5 & x \\ 5 & 3\end{matrix}\right]\]
Solve Equation

Answer 2

i know

Answer 3

what kind of problem is it? adddition subtraction?

Answer 4

idk it just says solve with an = sign between the two

Answer 5

y=7 x=-2

Answer 6

northmass can you show work on how ya got tht plz :)

Answer 7

x^2+1=5
5-y=x
x+y=5
y-4=3
from 1º equation:
x=+-2
first lets take x=2
5-y=2 =>y=3
which doesn't match last equation
let's take then x=-2 =>y=7
which match all equations. So x=-2 and y=7

Answer 8

that ^ lol

Answer 9

thank you all :P

Answer 10

yw

Answer 11

i really ddnt do anything but np

Answer 12

time to close the question