one equation of a pair of dependent linear equation is minus 5 x + 7 Y is equal to 2 the second equation can be be
Answers
Answer:
second equation = [(5x-7y) = -2]
Step-by-step explanation:
according to question :-
(-5x+7y) = 2 (equation 1)
so we can also write it as (5x-7y) = -2 (equation 2)
Given : One equation of a pair of dependent linear equations is −5x + 7y = 2 .
To Find : The second equation can be _____________
a) 10x+14y +4=0
b) −10x−14y+4=0
c) −10x+14y+4=0
d) 10x−14y= −4
Solution:
a pair of dependent linear equations has an infinite number of solutions
Hence they represent same line
Another Equation can be
k ( −5x + 7y ) = 2k where k is non zero real number.
One equation of a pair of dependent linear equations is −5x + 7y = 2
multiply by - 2
=> 10x - 14y = - 4
option D is correct
d) 10x−14y= −4
10/ - 5 = -14/7 = -4/2 = - 2
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