Add the expressions : x – 2y + z, 7y – 2x + 2z, 2z + 4x – 3y
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Step-by-step explanation:
→ (x - 2y + z) + (7y - 2x + 2z) + (2z + 4x - 3y)
→ (x - 2x + 4x) + ( -2y + 7y - 3y) + ( z + 2z + 2z)
→ ( 5x - 2x ) + ( 2y ) + ( 5z )
→ 3x + 2y + 5z
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