Find the sum of 6x+y-2z, -5x-y+z, -x+3y-z
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Find the sum of 6x+y-2z, -5x-y+z, -x+3y-z
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Answer:
3x-2z
Step-by-step explanation:
6x+y-2z+[-5x]-y+z+[-x]+3y-z
Signs are multiplied
=6x+y-2z-5x-y+z-x+3y-z
+z is canceled by -z
collect all the same expressions
6x-x-5x+y-y+3y-2z
+y is canceled by -y
minus x from 6x
=5x-5x+3y-2z
+5x is canceled by -5x
3x-2z ans
So,
3x-2z is answer
NOTE:
Do not write the sentences like {signs are multiplied }