Answer:
3x - 8y + 40z
Step-by-step explanation:
2x − 2y + 5z − 2x − y + 3z + x − 3y + 8z + 2x − 2y + 8z + 3y + 8z −3y + 8z
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[2x − 2x + x + 2x]+[− 2y − y − 3y − 2y + 3y −3y] + [5z + 3z + 8z + 8z + 8z + 8z] Combine like terms
[ 3x] + [-8y] + [40z]
