Answer:-4y^3-12y^2-7x
Step-by-step explanation:if you collect the liked terms it will add up to get that
Z: is the number
[Z*(-1)]+(-50)
(-Z)+(-50)
-Z-50
<span>I hope it helps you :)</span>
1) (-4) + (-9) = -13
2) 5 + (-12) = -7
3) -6 + 5 = -1
4) -7 + 7 = 0
<span>5) -7 + 2 ___ 3 + (-9)
- 5 ____ - 6
</span>-7 + 2 > 3 + (-9)
6) <span>4 + (-8) ___ 6 + (-8) + (-6)
- 4 ____ - 8
</span><span>4 + (-8) > 6 + (-8) + (-6)
7) </span><span>$66
8) </span><span>-$12
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