Simultaneous Equations: Substitution
six levels, click to reveal
Difficulty
Solve by substituting one equation into the other
1 · Two $y = \ldots$ equations
2 · One variable with coefficient 1
3 · Fractions in the coefficients
4 · A straight line and a quadratic
5 · Unfamiliar curves
6 · Twists
Mixed 1–6
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Solutions
Integers
Fractions
Surds
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Choose one or more. Levels 1 to 3: integers or fractions. Levels 4 and 5: integers, fractions (level 4) or surds. Level 6 is not changed.
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