AlgebraEasy–MediumFinding the second variable in a relation
Algebra practice question
The quantities p and q satisfy 2p − 3q = 4. When q = 2, what is the value of p?
Answer: 5
2p − 6 = 4 gives 2p = 10, so p = 5.
Common wrong answers
- If you answered 1
- 1 subtracts 3 from 4.
- If you answered 10
- 10 is 2p.
- If you answered -1
- −1 solves 2p + 6 = 4.
More Algebra questions
- Easy–Medium
A line passes through the points (0, 3) and (2, 7). What is the slope of the line? - Easy–Medium
A gym charges a $25 one-time signup fee plus $15 per month. Which equation gives the total cost C, in dollars,… - Easy–Medium
If 5(x − 2) = 3x + 4, what is the value of x? - Easy–Medium
A taxi charges a $3.50 base fare plus $2.25 per mile. If a ride costs $19.25 total, how many miles was the rid… - Easy–Medium
The equation of a line is 3x + 2y = 12. What is the y-coordinate of the point where the line crosses the y-axi… - Easy–Medium
A line in the xy-plane passes through the points (1, 5) and (4, 11). What is the y-intercept of the line?
Not affiliated with the College Board. SAT is a trademark of the College Board.