8 less than triple a number is 25

Question

Find the missing number

Answer 1

3x-8 = 25

3x = 33

x=11

8 less than triple 11 is 25

3(11)-8 = 33-8 = 25

so yes, the missing number is 11

Answer 2

8 less than triple a number is 25

Algebra is all about substituting unknown values with variables and then solving for that unknown variable.

....say we have a number X......

so....

3X-8 = 25.......add 8 to both sides of the equation we have.....

3X = 25 + 8 = 33......

3X = 33.......we need to solve for X......so divide both sides by 3....we have....

X = 33/3 = 3......so...... X=11.....Right?.....check....your answer....3x11 =33....minus 8...is 25...that checks...