Write the summation that represents the series 15 + 18 + 21 + 24. what is the explicit formula for the series shown?

Summation:

Explicit formula:

Step-by-step explanation:

The given series is 15 + 18 + 21 + 24.

The first term of this series is .

The common difference is

The explicit formula is given by: .

We plug in the known values to get:

The explicit formula is

The summation that represents the series is:

let's solve your equation step-by-step.

24−3x=−27

step 1: simplify both sides of the equation.

24−3x=−27

24+−3x=−27

−3x+24=−27

step 2: subtract 24 from both sides.

−3x+24−24=−27−24

−3x=−51

step 3: divide both sides by -3.

−3x

−3

=

−51

−3

x=17

answer:

x=17

step-by-step explanation:

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