Answer:
15. 6647.61
16. 553
Step-by-step explanation:
9514 1404 393
Answer:
-12, -21
Step-by-step explanation:
Let x represent the first number. Then the second is x-9. The other relation is ...
4x = 2(x-9) -6
2x = -24 . . . . . subtract 2x, simplify
x = -12
x-9 = -21
The first number is -12; the second number is -21.
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Answer: 11
Step-by-step explanation:
Remove the parenthesis
16 - 17
= -11
