Use AP sum formula

If x+3x+5x+7x+...+87x=5808, what is the value of x?

Final Answer:

x =  3

Step-by-step explanation:

a1=1 a2=3 a3=5 d=a2a1=31=2 n=44  a44=a1+d (n1)=1+2 (441)=87  s44=2a1+a44 n=21+87 44=1936  x+3x+5x+7x++87x=5808 x(1+3+5+7+  + 87)=5808  x s44=5808 x 1936=5808  1936x=5808  x=19365808=3  x=3



Help us improve the example. If you find a mistake, let us know. Thank you!







Tips for related online calculators
Need help calculating sum, simplifying, or multiplying fractions? Try our fraction calculator.
Do you have a linear equation or system of equations and are looking for its solution? Or do you have a quadratic equation?

You need to know the following knowledge to solve this word math problem:

Related math problems and questions: