Question

Find the matrix equation.

X-[2, -8, -4, 2] = [4, -6, 2, -8]

a. [6, -14, -2, -6]

b. [2, -14, -2, -10] <----

c. [6, -14, 6, -10]

d. [6, 2, 6, -6]

Answer 1

@jim_thompson5910 i need your help again D:

Answer 2

we need to isolate X, so we need to get it all by itself on one side

Answer 3

how do we do that

Answer 4

subtract [2, -8, -4, 2] on both sides?

Answer 5

what operation is being done to [2, -8, -4, 2] on the left side

Answer 6

we have X _____operation_____ [2, -8, -4, 2]

what goes in the "operation" blank

Answer 7

i have no idea

Answer 8

is it

X + [2, -8, -4, 2]

or is it

X - [2, -8, -4, 2]

on the left side

Answer 9

x - [2, -8, -4, 2]

Answer 10

so we're saying X minus that matrix

Answer 11

what operation undoes subtraction?

Answer 12

addition

Answer 13

that means you have to add that matrix to both sides

Answer 14

Right, okay.

Answer 15

Thank you (:

Answer 16

you're welcome