Sam chose number he then multiplied his number by 2 and added 7 his resluts was 23 what was his oringinal number

8

Step-by-step explanation:

make it an equation: 2x+7=23

simplify: 2x=16

and again x=8

m a t h w a y. c o m

step-by-step explanation:

the formula for the equation of a circle is (x – h)2+ (y – k)2 = r2, where (h, k) represents the coordinates of the center of the circle, and r represents the radius of the circle. if a circle is tangent to the x-axis at (3,0), this means it touches the x-axis at that point.