Question

find the sum of (3x-2y),(2y+8z)and(-5x-7x)​

Answer 1

Answer:

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➡️ 3x - 2y + 2y + 8z - 5x - 7x

➡️ 3x - 5x - 7x - 2y + 2y + 8z

➡️ (3-5-7)x + 8z

➡️ (3-12)x + 8z

➡️ -9x + 8z

Answer 2

EXPLANATION

= (3x - 2y) + (2y + 8z) + (-5x - 7x)

= 3x - 2y + 2y + 8z - 5x - 7x

= 3x + 8z - 12x

= - 9x + 8z