Question 2 of 10
2 Points
Ezra is training for a track race. He starts by sprinting 100 yards. He gradually
increases his distance, adding 5 yards a day for 21 days.
Which explicit formula models this situation?
O
A. an = 100 + (n − 1)21
an = 100 + (n − 1)5
an = 5+ (n - 1)100
an = 21 + (n − 1)5
O
SUBMIT
ASAP PLEASE

d, x=8

step-by-step explanation:

simplifying

4x + -5 = 2x + 11

reorder the terms:

-5 + 4x = 2x + 11

reorder the terms:

-5 + 4x = 11 + 2x

solving

-5 + 4x = 11 + 2x

solving for variable 'x'.

move all terms containing x to the left, all other terms to the right.

add '-2x' to each side of the equation.

-5 + 4x + -2x = 11 + 2x + -2x

combine like terms: 4x + -2x = 2x

-5 + 2x = 11 + 2x + -2x

combine like terms: 2x + -2x = 0

-5 + 2x = 11 + 0

-5 + 2x = 11

add '5' to each side of the equation.

-5 + 5 + 2x = 11 + 5

combine like terms: -5 + 5 = 0

0 + 2x = 11 + 5

2x = 11 + 5

combine like terms: 11 + 5 = 16

2x = 16

divide each side by '2'.

the answer is ! ?

your answer is -9

step-by-step explanation: