Question

The steps below show the incomplete solution to find the value of x for the equation 7x + 8 − 3x = −6 + 10: Step 1: 7x + 8 − 3x = −6 + 10 Step 2: 7x + 8 − 3x = 4 Step 3: 4x + 8 = 4 Which of these is most likely the next step? 4x = 12 4x = 4 4x = −4 4x = −12 Question 2(Multiple Choice Worth 4 points) (07.03) What is the value of x in the equation 2(2x − 5 − 4) = 160 − 17? 40.25 62.25 80.25 143.0 Question 3(Multiple Choice Worth 4 points) (07.03) What is the value of z in the equation 4(2z + 3) = 12? −13 12 0 12 Question 4(Multiple Choice Worth 4 points) (07.03) What is the solution to the following equation? 5(2x − 6) + 20 = 10 9 5 3 2 Question 5(Multiple Choice Worth 4 points) (07.03) How many solutions does the equation 5x + 10 = 5x − 8 have? Zero One Two Infinitely many

Answer 1

option three : 4x=-4

Answer 2

4x = −4


Question 2
2(2x − 5 − 4) = 160 − 17
4x-10-8 = 160-17
4x-18=143
4x = 161
x=40.25


Question 3
4(2z + 3) = 12
8z +12 = 12
8z = 0
z = 0

Question 4

5(2x − 6) + 20 = 10
10x-30+20=10
10x-10=10
10x =20
x=2


Question 5

5x + 10 = 5x − 8
5x+18=5x
18=0
Zero solutions