Answer:
none of the options
Step-by-step explanation:
4x − 5y = 2 , 10x − 21y = 10
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the first equation is same in all answer choices, let's check which is equivalent to second, the easy way is to consider x/y ratio which is 10/ -21
4x − 5y = 2 , 3x − y = 4
4x − 5y = 2 , 24x − 47y = 22
4x − 5y = 2 , 10x + 3y = 15
4x − 5y = 2 , 14x + 26y = 12