solve the systems of equations.....?

Question

solve the systems of equations for u, v, and w...
18u + 96v + 24w= 87
19u - 52v - 3w = 52
-64u - 29v +60w= 32

Answer 1

Wow, you have some complicated problems to work with. What you need to do is choose two problems to work with at a time. You need to isolate your variables. You want to pick something that is easy to adjust and work with.

For example, you can use the first two problems to get rid of the w factor. All you need to do is multiply the second problem by 8 and add the parts of the equation together (remember, adding a negative is just like subraction).

Then choose two more equations such as the bottom two to again get rid of w. Multiply the middle one by 20 and add together. Once you have the two equations, do the same thing to get rid of one more variable (u OR v).

Once you solve the first variable, you can go back to the two by two equation to solve for the second variable (just choose either equation, and then further go back to your original set of equations, choose one, and solve for your third variable, w if you use my example.

Finally, you can check your final answer by plugging all of your variables into the original equations given.

Good luck!

Answer 2

You're working on linear algebra? or at least matrix simplification?

[18 96 24 | 87
19 -52 -3 | 52
-64 -29 60 | 32]


Solve by row reduction or find a nifty computer calculator to do it.

Answer 3

u = (64889/26870)
v = (-3882/13435)
w = (79793/26870)

i used www.quickmath.com

Click on solve under Equations, then click advanced, then copy and paste your equation, then change the variable on the right to u v and w, click enter.

Answer 4

u= 64889 / 26870 v= 3882 / 13435 w= 79793 /26870



thank u derive

Answer 5

u= 2.415
v= -0.289
w= 2.9696

Answer 6

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