Find the sum of 17y+ 19x - 11z, -1ly+ 7z - 15x, y + 19x - 20z and -3y + 15z - 15x.
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Answer:
4y+8x-9z
Step-by-step explanation:
(17y-11y+y-3y)+(19x-15x+19x-15X)+(-11z+7z-20z+15z)
=4y+8x-9z
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Step-by-step explanation:
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