Answer
x=9
Work Step by Step
Write down all the given information:
P=42; P=2x+3y; y=8; x=?
Then form an equation:
$42=2x+3\times8$
And lastly calculate the missing value:
$42=2x+24<=>18=2x<=>x=9$
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.