Because you are not adding the x's .When you add the coefficients, the variable comes along with it.
Hello,
Let's assume n the number searched.
nine less 3 times n is written 9-3n
8+2x is the answer to to this thanks so much
26/52 because reducing like terms gives us half compared to 21/49 being way less than half based on adding the numerators of these 2 fractions.
This would be an exponential graph and non of the answers are exponential. but the graph would be f(x)=3^x