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Gyaan Maths
CBSE · Class 6-12
Back to Pair of Linear Equations in Two Variables
Class 10 · Mathematics (Standard) · Unit 3: Pair of Linear Equations in Two Variables

Substitution Method

Lesson 2 of 5
Solve one equation for one variable, substitute into the other, and solve. E.g. from x−y=−1x - y = -1 we get x=y−1x = y - 1; put in 3x−5y=−13x - 5y = -1: 3(y−1)−5y=−1⇒−2y=2⇒y=−1,x=−23(y-1) - 5y = -1 \Rightarrow -2y = 2 \Rightarrow y = -1, x = -2.
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Gyaan Maths — CBSE Class 6-12, built for board-toppers.
v1.1 · Sept 2026