aubrey1161
04.07.2019 •
Mathematics
How many terms does the following sum have when it is written in standard form: (4x9 – 3x2 – 4) + (4x9 + x3 + 2x)? a. 7 b. 5 c. 3 d. 1
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Ответ:
the answer is a.7
Step-by-step explanation:
each term is either before or after a symbol
4x9
3x2
-4
4x9
x3
2x
1
Ответ:
5
Step-by-step explanation:
Ответ:
x+4x+x-7= 137
combine like terms
6x-7=137
isolate the variable by adding 7 to both sides
6x=144
divide
x=24
but remember, tin c is x-7 so plug the 24 in, and the answer is 17.