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Answer:
Step-by-step explanation:
1/2(10x+20y+10z)=?
5x + 10y + 5z
Just multiply the outer number "1/2" into the parenthesis.
1/2 * 10x = 5x
1/2 * 20y = 10y
1/2 * 10z = 5z
Then just place it in the same form:
5x + 10y + 5z
So, 1/2(10x+20y+10z) = 5x + 10y + 5z