Question

For all real values of c, the pair of equations
x – 2y = 8
5x – 10y = c
have a unique solution. Justify whether it is true or false
NCERT Class X
Mathematics - Exemplar Problems
Chapter _PAIR OF LINEAR EQUATIONS IN TWO VARIABLES

Answer 1

yes it's true
multiply eqn 1 by 5
u get eqn 2 and c=40
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