7 use the five step strategy for solving word probelsm to fi

#7. use the five step strategy for solving word probelsm to find the number described:

when three times a number is decreased by seven, the result is 68. what is the number?

Solution

Five Steps for word problem :

1) Read the problem completely.Determine what type of problem: its number problem.Determine what information is available to you.---when three times a number is decreased by seven, the result is 68

let the number be x

2) three times a number = 3x

three times a number is decreased by seven : 3x -7

3x-7 =68

solve the equation : 3x -7 = 68

3x = 68+7 = 75

x = 75/3 = 25

4) Check the solution : 3*25 -7 = 68 ( Verified)

5) The number is 25 which is when multiplied by 3 and decreased by 7 gives 68