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deborah0
12.01.2020 •
Mathematics
What number between 30 and 40 has only one and itself as factors?
a) 31
b) 33
c) 35
d) 39
Solved
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Ответ:
Ответ:
One solution.
Step-by-step explanation:
So we have:
2x + 3 = 4x + 2
Simplifying gives;
4x - 2x = 3 - 2
2x = 1
x = 1/2
There is only one solution here.
*Note: This questions are simple. You just have to do a little more practice on algebra if you are stuck.