# Algebra

posted by .

Solve for x in the following matrix equation.
[5x-8 1] = [2 1]
[3 4m-1] [3 7m+6]

How do you do this? I hardly know anything about this... The packet I got that was supposed to help me understand matrices and stuff just made me more confused.

• Algebra -

each element must be identical in the two matrices (you already have 1=1 and 3=3), so you just have to solve

5x-8 = 2
4m-1 = 7m+6

then use those values to fill in the unknown elements.

• Algebra 2 -

since the two matrices are equal, corresponding elements of the matrices are also equal.
so : 5x -8 = 2
5x - 8 + 8 = 2 + 8
5x = 10
x = 2

## Similar Questions

1. ### math

just an algebra question. how would you solve: (3x^2 +5)(3x^2 +5) ^ means power :] Since you have not given us an equation, it is impossible to "solve" your problam. Please repost with the complete equation, so we can help you. I hope …
2. ### Algebra2(check part 1)

1)Solve the matrix:[2x] [14]for x [3y]=[12] answer=7 2)V[3 1] [0 2] [-4 5].The dimensions of matrix V. answer=3x2 3)The first row of T+U T[4 -5 2] U[-9 6 4] [8 -1 3] [-5 -2 3] answer=[-5 1 6] 4)The first row of V-T. V[3 1] T[4 -5 2] …
3. ### Algebra II (Matrices)

My book doesn't solve it like a linear equation, they solve it by using inverse matrices. Solve the matrix equation: |4 -5||m|=|32| |1 2| |n|=|-5| A= |4 -5| |1 2| X= |m| |n| B= |32| |-5| Step 1. Find the inverse of the coefficient …
4. ### Maths: Algebra Matrices Class 12th

matrix{{0, 1, -1}, {2, 1, 3}, {1, 1, 1}} matrix{{1, -1, x}} matrix{{0}, {1}, {1}}=0 Find the value of x Don't give me the direct answer. Please tell me how to go about this. Draw in your notebook and then solve
5. ### Algebra 2

Is it me or does this problem not make sense?
6. ### Algebra help!

Please help and I would appreciate an explanation as to how you got to the answer. 1.) Solve the system by triangularizing the augmented matrix and using back substitution. 0.09x-0.15y+0.39 -0.18x+0.35y=-0.88 2.) Solve the system by …
7. ### Pre-Calculus

Solve the equation 2x + 5y - 3z = -1. Write the general solution as a matrix equation. [x] [ ] [1] [y]= [ ] X [s] [z] [ ] [t] I'm supposed to fill in that blank in the middle, but I don't understand how to solve this if I'm only given …
8. ### Calculus

Please, don't assume that we've been taught this stuff because we were literally just handed a packet and told to learn it ourselves. I don't understand this in the slightest. The question is: Use the information to evaluate and compare …
9. ### Calculus

Please, don't assume that we've been taught this stuff because we were literally just handed a packet and told to learn it ourselves. I don't understand this in the slightest. The question is: Use the information to evaluate and compare …
10. ### Algebra 2

How would I go about solving the following problem?

More Similar Questions