SAT MATH • ANSWER CHECK

Linear Equations

Complete the practice first, then open each answer to check your work. These answers match the revised September 2026 worksheets.

Practice PDF Back to topics Handbook

For a wrong answer, identify the cause: concept, algebra, arithmetic, interpretation, calculator choice, or timing. Equivalent exact numerical forms are accepted for these practice exercises.

Question 1

Answer: 7

Question 2

Answer: B

B. 9

Question 3

Answer: C

C. 8

Question 4

Answer: C

C. 9

Question 5

Answer: 2

Question 6

Answer: C

C. 78

Question 7

Answer: A

A. No solution

Question 8

Answer: B

B. Infinitely many solutions

Question 9

Answer: C

C. Exactly one solution

Question 10

Answer: 7

Question 11

Answer: B

B. a=5 and b=1

Question 12

Answer: 10

Question 13

Answer: B

B. Exactly one solution

Question 14

Answer: 12

Question 15

Answer: D

D. Infinitely many solutions

Question 16

Answer: A

A. No solution

Question 17

Answer: 44

Question 18

Answer: C

C. −5

Question 19

Answer: C

C. (3)/(2)