Question

Three times a number increased by 7 is 100. Find the number.

Answer 1

the number is 31

Explanation:

the number is the variable x

3 times the number is 3x

increased by 7 is +7

is 100 is =100

3x +7 =100

subtract 7 from both sides

3x =93

divide by 3 on both sides

x = 31

Answer 2

31

Explanation:

100-7= 93

93÷3=31