I believe the answer would be 2xyz9x2yz18x2 - 6y4x3 + 5ab - 4. the x canceled itself out.
Answer:x=2
Step-by-step explanation:
-8x+10-6=-12
Collect like terms
-8x+4=-12
-8x=-12-4
-8x=-16
x=2
1.5 times 10 to the -8th power
The answer to this question is A). 39 b). 56