Any value greater than or equal to zero is too high to be x. This is because if you substitute a value greater than or equal to zero for x on the right side of the equation, it will result in a positive number (5x), making it impossible for the left side (which is -7.2) to equal the right side. rephrase a s a 7th grader
Any number that is zero or greater is too big to be x in this equation. This is because if you use a number that is zero or bigger for x, the right side of the equation (which is 5x) will turn out to be a positive number. This makes it impossible for the left side (which is -7.2) to be the same as the right side.
