1.06 Quiz: Solve Linear Equations with Addition and Subtraction Review This is not a question you have to answer!
I'm giving out the answers because I already did the quiz.

(Question 1): Solve for p.

21 + p = 44

Enter your answer in the box.

p = 23 is the correct answer.

(Question 2): Solve for f.

f + 0.2 = -3

(A): f = -3.2
(B): f = -2.8
(C): f = 2.8
(D): f = 3.2

Option (A) is the correct f = -3.2

(Question 3): Solve for a.

a + (-5) = -12

(A): a = -17
(B): a = -7
(C): a = 7
(D): a = 17

Option (B) is the correct a = -7

(Question 4): Solve for x.

x + 29 = -11

Enter your answer in the box.

x = -40 is the correct answer.

(Question 5): Solve for a.

a + (-1.6) = -3.7

Enter your answer in the box.

a = -2.1 is the correct answer.

step-by-step explanation: so we look at the formula un = a + (n-1)d

un is the amount of seats

n is the nth term aka row number

a is the original sequence/row number

d is the difference between each term

so in this a=22 d=6 and n can remain as n because we are simply formjng a rule

lets put these in the equation

un=22+(n-1)(6)

this is your answer to part a

however

lets double check that this is correct, we'll try putting it into the second term

un=a+(n-1)d

u2=22+(2-1)(6)

u2=22+6

u2=28

as the question said the second row has 28 seats so now we know the formula we made is correct.

as for part b

un=a+(n-1)

its asking us to find a row with 100 seats.

remember un was the amount of seata so all we do is substitute this in.

un=100 a=22 d=6

un=a+(n-1)d

100=22+(n-1)(6)

so now we simplify to find n which is the row number.

100-22=22+(n-1)(6)-22

78=(n-1)(6)

78/6=(n-1)(6)/6

13=n-1

13+1=n-1+1

14=n

so now we know that in the 14th row there is 100 seats.

hope this and that you understood! its my first time using the app or anyone out on here : p its also me to revise so a bunch! ask more questions if you dont understand ☺

lol 2

step-by-step explanation: