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Simplify each of the following: m-[...

Simplify each of the following: ` m-[m+{m+n-2m-(m-2n)}-n]` `3x^2z-4y z+3x y-{x^2z-(x^2z-3y z)-4y z-7z}`

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Simplify each of the following: 1. m-[m+{m+n-2m-(m-2n)}-n] 2. 3x^2z-4y z+3x y-{x^2z-(x^2z-3y z)-4y z-7z}

Simplify the following: -x+y+z-(2x-3y+z)

5x-[4y-{7x-(3z-2y)+4z-3(x+3y-2z)}]

3x - [4y - {7x - (3z - 2y) + 4z - 3(x + 3y - 2z)}]

Multiply each of the monomial : (-3x^2y),\ (4x y^2z),\ (-x y^2z^2)a n d\ (4/5z)

3x-4y+2z=-1 2x+3y+5z=7 x+z=2

3x-4y+2z=-1 2x+3y+5z=7 x+z=2

Using matrices, solve the following system of equations for x,y and z: 3x-2y+3z=8,2x+y-z=1,4x-3y+2z=4

Add : 8x - 3y + 7z, -4x + 5y - 4z, -x - y - 2z

2x-3y+5z=16, 3x+ 2y-4z= -4, x + y - 2z =- 3.