Double number line 3t+15=45

t=-10 or t=20

Step-by-step explanation:

We want to solve the equation:

We use the definition of the absolute value function to get:

Divide through the first equation by -1 to get:

We now add 15 to both sides of the equation to get:

Divide through by 3

the domain of a function is the set of input values, x , for which a function is defined. the domain is shown in the left oval in the picture below. the function provides an output value, f(x) , for each member of the domain.