What is the mean of the values in the stem-and-leaf plot?
1 answer:
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For this case, we have the following expression:
We simplify the expression:
If we add similar terms, taking into account that different signs are subtracted and the sign of the greater one is placed, we have that
So, we have to:
Answer:
-3x + x + 5 = -2x + 5
To do this you need to know simultaneous equations (which i don’t know if you have learnt it) but this is really hard to explain by words so i hope you can understand by the working out i did
