Changing the subject when it appears twice Quiz
10 questions · easy to harder · Algebra 1 · score and step-by-step answers
How it works
- 10 questions, about 20 minutes (a timer counts down; you can hide it). Solve it right here: no sign-up.
- 0 questions have choices. For the others you type the answer: a number like 4, −2, 7/2 or 3.5, or for example x = 4, x = 2 or x = −3, (3, 5), 2x + 1. Use ^ for powers (x^2) and sqrt for √. Any form with the same value counts (7/2 = 3.5).
- One question at a time: Back, Next, Mark for review and the question list at the bottom. A calculator is on the screen.
- At the end: your percent and grade, every question right or wrong, why a wrong choice is wrong, and its step-by-step solution. Then practise the lesson with new questions.
Your answers and results are kept in this browser only, so you can close the page and come back.
1 Question 1
Ax = b + cx for x. Find x.Type the answer.
2 Question 2
Make x the subject of 3x + a = bxType the answer.
3 Question 3
Make x the subject of px + q = rxType the answer.
4 Question 4
Make x the subject of ax + 4 = x + bType the answer.
5 Question 5
Make x the subject of p(x − q) = r(x + s)Type the answer.
6 Question 6
Make x the subject of a(x − 3) = 4x + bType the answer.
7 Question 7
Make x the subject of xy + 3 = 2x + yType the answer.
8 Question 8
Make x the subject of y = x + 2x − 3Type the answer.
9 Question 9
Make x the subject of a = x + bx − cType the answer.
10 Question 10
Make x the subject of k = x − 1x + 2Type the answer.