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**Need help in MatLab, I haven't used this program in a while...**

**1. 7u+3v+2w-x+7y-2z=1**

3u+9c+1w-2x-9y+5z=7

5u+7v+3w-2x+7y+z=-5

2u+1v+9w-2x-7y-6z=14

9u+1v-8w+2x-7y+3z=22

u+2v+3w+4x+5y+6z=69

Solve for u,c,w,x,y,z using MatLab

3u+9c+1w-2x-9y+5z=7

5u+7v+3w-2x+7y+z=-5

2u+1v+9w-2x-7y-6z=14

9u+1v-8w+2x-7y+3z=22

u+2v+3w+4x+5y+6z=69

Solve for u,c,w,x,y,z using MatLab

I know it is solving linear equations using matrices but how can I do this in MatLab language?