SOLUTION: Define a variable and write an equation to find each number. Problem: Three times a number equals 40 more than five times the number. What is the number?

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Question 129602: Define a variable and write an equation to find each number.
Problem: Three times a number equals 40 more than five times the number.
What is the number?

Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
3x+=+5x+%2B+40
subtract 3x from both sides
0+=+5x+-+3x+%2B+40
0+=+2x+%2B+40
subtract 40 from both sides
2x+=+-40
x+=+-20 answer