If 97x+3=100, what would x equal?

Answer 1

97x is unknown, so call it what number when you read 97x+3=100. That is what number plus three equals 100. Naturally that number is 97 (ie 97+3=100!!). So 97x=97. Now read the x as what number. 97 times what number is 97. Since 97*1=97 it follows that x=1.