Question

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a) (2x-y+4)-(z+14y)+1/2 z =

b) (-2x+4/5y-2z)+(2z-0,2y+2x)=

c) 4z-2e-(12a+3z-1,5e)=

d) 12y-(3x-8y)+(2x-4y)+x=

Answer 1

a) (2x-y+4)-(z+14y)+1/2 z =2x-y+4-z-14y+0,5z=2x-15y-0,5z

b) (-2x+4/5y-2z)+(2z-0,2y+2x)=-2x+0,8y-2z+2z-0,2y+2x=0,6y

c) 4z-2e-(12a+3z-1,5e)=4z-2e-12a-3z+1,5e=-12a-0,5e+z

d) 12y-(3x-8y)+(2x-4y)+x=12y-3x+8y+2x-4y+x=16y

Answer 2

a) (2x-y+4)-(z+14y)+1/2 z =2x - y + 4 - z - 14y + 1/2z = 2x - 15y + 4 - 1/2z

b) (-2x+4/5y-2z)+(2z-0,2y+2x)= -2x + 4/5y - 2z + 2z - 0,2y + 2x = 0,8y - 0,2y = 0,6y

c) 4z-2e-(12a+3z-1,5e)= 4z - 2e - 12a - 3z + 1,5e = z - 0,5e - 12a

d) 12y-(3x-8y)+(2x-4y)+x= 12y - 3x + 8y + 2x - 4y + x = 16y