The sum of four and the product of three and a number

4 + 3x

Step-by-step explanation:

Let the number = x

Product of three and a number = 3*x = 3x

Sum of four and 3x = 4 + 3x

4 + 3x

Step-by-step explanation:

Sum means adding

Product means multiplication, which is three and a number (let's put x)

This means that 4 plus 3 times x, which is 4 + 3x

x=-2

infinite number of lines, so there is an infinite number of equations.

step-by-step explanation:

there are an infinite number of line that passes through the point (-2,5)

x=-2   is one line that passes through the point

y = 5 is another line that passes through the point

(these two lines are perpendicular to each other).

since the number of   numbers are infinite and the slope is the ratio of two numbers,(change in y over change in x) we can have an infinite number of slopes.     our only condition is that it passes through the point (-2,5)