Anumber is doubled and then 1 is added to it. the answer is divided by 5 and then increased by 16. the final result is 18. a)develop an equation that shows the step above equation: b) solve the equation to determine the value of the number. solve the equation. show your work the number

So let's break down this sentence (Let n = unknown number):

Now, let's solve our prior equation found in A. To solve for the unknown number, n, we need to isolate the variable onto 1 side of the equation. Firstly subtract both sides by 16 to cancel out the + 16 on the left side:

Next, multiply both sides by 5 to cancel out the division on the left side:

Next, subtract both sides by 1 to cancel out the + 1:

Lastly, divide both sides by 2 to cancel out the multiplication:

In short, the number is 9/2 or 4.5.

answer: on graphs, the open and closed circles, or vertical asymptotes drawn as dashed lines us identify discontinuities.

as before, graphs and tables allow us to estimate at best.

when working with formulas, getting zero in the denominator indicates a point of discontinuity.

when working with piecewise-defined functions, check for discontinuities at the transition points where one piece ends and the next begins.

step-by-step explanation: