SIMULTANEOUS
TWO LINES · ONE ANSWER
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Two Lines, One Answer
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x
y
(4, 2)
x + y = 6
x − y = 2
add them: 2x = 8
x = 4 → y = 2
x = 4
y = 2
(4, 2)
where the lines meet
1. Do Tareeqe
Graph: where the lines meet
Elimination: by adding or subtracting
2. Check It
4 + 2 = 6 ✔
4 − 2 = 2 ✔
3. Remember
Parallel lines → no solution
Same line → infinitely many solutions
MATRIC MATHS · LINEAR EQUATIONS · PUNJAB BOARDS
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