Master solving systems with adaptive practice. Learn substitution, elimination, and graphing methods to find where two equations meet.
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Create Free AccountThree main methods: 1) Graphing - find where lines intersect, 2) Substitution - solve one equation for a variable and substitute into the other, 3) Elimination - add or subtract equations to eliminate a variable.
Use substitution when one equation is already solved for a variable (like y = 2x + 1). Use elimination when coefficients of one variable are the same or easy to make the same. Both methods give the same answer.