Bluebook SAT Test Linear Equations in One Variable 8

Question 1

Solve for x: 4x + 1 = 2x + 9

Accepted Answer

x = 4

Answer

x = 2

Answer

x = 5

Answer

x = 10

Question 2

A scientist starts with 200 mL of solution and adds x mL of water, reaching 350 mL total. What is x?

Accepted Answer

x = 150

Answer

x = 100

Answer

x = 175

Answer

x = 200

Question 3

If 7(x − 2) = 2(x + 8), what is the value of x?

Accepted Answer

x = 6

Answer

x = 4

Answer

x = 8

Answer

x = 9

Question 4

The equations 2x + m = 14 and 3x − m = 6 are both true. What is the value of x?

Accepted Answer

x = 4

Answer

x = 2

Answer

x = 3

Answer

x = 5

Question 5

Solve for x: 1.5x − 3 = 0.5x + 5

Accepted Answer

x = 8

Answer

x = 4

Answer

x = 2

Answer

x = 16

Question 6

A number increased by 12 equals three times the number decreased by 4. What is the number?

Accepted Answer

n = 8

Answer

n = 4

Answer

n = 10

Answer

n = 16

Question 7

Solve for x: 3(x + 4) − 5 = 4(x − 1) + 6

Accepted Answer

x = −1

Answer

x = −4

Answer

x = 4

Answer

x = 0