Question

Add: 20a + b - c , a - 20b + c , a + b - 20c

Answer 1

Step-by-step explanation:

20a+2b+2a-20b-20c is the answer

Answer 2

Step-by-step explanation:

20x+y+z+x−20y+z+x+y−20z

=20x+y+z+x+−20y+z+x+y−20z

Combine Like Terms:

=20x+y+z+x+−20y+z+x+y−20z

=(20x+x+x)+(y+−20y+y)+(z+z+−20z)

=22x+−18y−18z.

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