It is actually simplified as 7*10 + 8*9+ 7*13 + 4*8 + 21+4, which is 290
Answer:
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Step-by-step explanation:hjhenrefen
Umm this might be wrong, but i think you have do the inverse, which would make -4 positive, then add that to the 2, and then subtract that from 0.6 and then whatever you answer you get is equal to the variable z.