Question

Write and solve the equation/expression written below:

Three times the sum of a number and 4 is the same as 18 less than a number.

Answer 1

Explanation:

Three times the sum of a number and 4 is the same as 18 less than a number.

Solution,

Let the number be x, then

3(x+4)=x-18

3x+12=x-18

3x-x=-18-12

2x=-30

x=-30/2

x=-15