Question

15y+10z+5y-20y-10z+5x+8x-10x​

Answer 1

Answer:

15y+10z+5y-20y-10z+5x+8x-10x

20y-20y+10z-10z+13x-10x

3x

Answer 2

Answer:

$15y+10z+5y-20y-10z+5x+8x-10x \\ = (5x+8x-10x) + (15y+5y-20y) + (10z-10z) \\ = (13x - 10x) + (20y - 20y) + 0 \\ = 3x + 0 + 0 \\ = 3x$ Hope this helps you.

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