6x+7y-4z-2x+3y-z+5x+5y+7z

Question

Clancy

Mathematics

9 December, 06:34

6x+7y-4z-2x+3y-z+5x+5y+7z

+4

Answers (1)

Know the Answer?

Harry Elliott · Answer 1

9x + 15y + 2z

Step-by-step explanation:

Subtract 2 x from 6 x. 4 x + 7 y - 4 z + 3 y - z + 5 x + 5 y + 7 z Add 4 x and 5 x. 9 x + 7 y - 4 z + 3 y - z + 5 y + 7 z Add 7 y and 3 y. 9 x + 10 y - 4 z - z + 5 y + 7 z Add 10 y and 5 y. 9 x + 15 y - 4 z - z + 7 z Subtract z from - 4 z. 9 x + 15 y - 5 z + 7 z Add - 5 z and 7 z. 9 x + 15 y + 2 z