Skill: literal-equations
Practice: Literal Equations
Rearrange formulas for any variable, then put numbers in. Symbolic answers welcome.
1 Practice
Untimed practice with hints and full worked solutions. Every problem is generated fresh.
Correct 0 of 0 · Streak 0
Scores are session-only — they reset when you leave this page.
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How to enter answers
- Type the rearranged formula, e.g.
x=(c-b)/a. Spaces are fine. - Use
-for minus,/for division. The*is optional (2A=2*A). - For formula evaluations, enter just the number.
2 Problem types
The generator mixes these types at random.
Solve ax + b = c for x
Subtract q, divide by p.
px + q = r
Solve y = mx + b for x
Isolate x completely.
y = mx + b
Two letters
One target, the rest ride along.
ax + by = c
Perimeter formula
Divide every term by 2.
P = 2l + 2w
Fraction formulas
Clear the denominator first.
A = bh/2
Division form
Subtract b, multiply by a.
x/a + b = c
Evaluate a formula
Substitute, then compute.
d = rt