F(x)=-5

write a new equation

f(2x)

f(2x) = -5

Step-by-step explanation: Here we know that the function f(x) = -5

this means that the function is a constant function, it does not depend on the value of x that is introduced in it.

Then if we evaluate it in 2x, the result is the same (again, it does not depend on the value of x)

f(2x) = -5

x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

step-by-step explanation:

last month maria hiked the 5-mile mountain trail a number of times and she hiked the 10-mile canal trail several times. let x represent the number of times she hiked the 5-mile trail, and let y represent the number of times she hiked the 10-mile trail. if she hiked a total of 90 miles, which equation can be used to find the number of times maria hiked each trail? x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x