College Algebra / Unit 3 Alg 131 short lesson, about 20 seconds
Linear Equations in One Variable
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The idea
A linear equation in one variable can be written as ax + b = 0 with a nonzero; the variable's power never exceeds 1.
In practice
3x + 7 = 19 qualifies; x² = 9 does not — the square disqualifies it.
Where people slip
Linear names the degree, not the length of the equation.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
Builds on
- Nothing. This is a starting point.
Unlocks
- Nothing yet depends on this.
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