Because both of the equations = s, we can set them equal to each other.
c + 7 = 2c - 13. Now we can solve for c. Once you have found c, you can substitute it back into either of the two original equations and solve for s.
<h3>given:</h3>
5, 9, 6, 6, 7, 5, 8, 7, 6
<h3>to find:</h3>
the mean of the following data.
<h3>solution:</h3>
add all the values and the divide them by the number of values given.
<u>therefore</u><u>,</u><u> </u><u>the</u><u> </u><u>mean</u><u> </u><u>of</u><u> </u><u>the</u><u> </u><u>given</u><u> </u><u>data</u><u> </u><u>is</u><u> </u><u>7</u><u>.</u>
<u>answer</u><u>=</u><u> </u><u>option</u><u> </u><u>C</u>
Answer:
1) 3x+18=45 x=9
2)8-5x=-7 x=3
3)3+2x=15 x=6
4) 12million - 2 million = 10 million
Step-by-step explanation: