Question

Can anyone show me how to do this problem and explain how do do it?

[2x 3 3z]=[5 3y 9]

Answer 1

im sorry buti dont understand the problem even though im really good at math sorry i cant help you unless you give me more detail

Answer 2

Solve The Equation
haha Sorry forgot to put tht. :)

Answer 3

do you know what z and y are and is x a symbol also or is it a multiplication sign

Answer 4

like what they stand for

Answer 5

You have three unknowns, you need three equations at least to solve it.

Answer 6

thts what i was thinking preetha

Answer 7

the book does not say it says:

Solve each equation:

1). [2x 3 3z]=[5 3y 9]
thats what it says to do

Answer 8

= stands for multiply rite?

Answer 9

no equal means that they are gonna equal the same amount when done

Answer 10

oh. idk how we could do tht then

Answer 11

so what u basically have to do is think of a number for x and z and then solve the equation and think of a number for y so that when the equation y is solved in it will equal the same answer as u got when u solved the equation with x and z in it

Answer 12

i found an example in the book.. want me to post it?

Answer 13

sure

Answer 14

\[\left(\begin{matrix}y \\ 3x\end{matrix}\right)=\left[\begin{matrix}6 - 2x \\ 31 + 4y\end{matrix}\right]\]

y=6-2x
3x=31+4y
This system could be solved by using substitution:
3x=31+4y Second Equation
3x=31+4(6-2x) Substitute 6-2y for y
11x=55 Add 8x to each side
x=5 Divide each side by 11
To find the value for y, substitute 5 for x in either equation:
y=6-2x First equation
y=6-2(5) Substitute 5 for x
y=-4 Simplify
The Solution is (5,-4)

Answer 15

() is for matrices

Answer 16

yea i dont understand this sorry

Answer 17

ok

Answer 18

Ok, that makes sense. This is matrix algebra. Format your question in a matrix form. And substitute the first line in the second, just like the example.

Answer 19

ok thank you

Answer 20

soo i would do it that to this one??
[2x 3 3z]=[5 3y 9]
but if soo i dont see how, can you show me preetha?