Find the value of x to the nearest tenth.

3.7
11.5
3.3
4.5

The answer is 

tan42 = x / 5, so x =  5 tan42 = 4.5
the answer is 4.5

put like terms together.orremember that the 45 becomes negative when moved to the other side.orthe minuses cancel out.

1. isolate the variable, in this case, d. subtract 35.5 on both sides of the equation.2. 52 subtracted by 35.5 is 16.53. therefore your answer would be d= 16.5this is the basics of pre algebra, isolating variable through adding, subtracting, multiplying, and dividing, if you have any other questions to ask just comment!