Question

The value of x satisfying both the equations 4x – 5 = y and 2x – y = 3, when y = -1 is

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Answer 1

x = 1

Explanation:

4x-5=y

4x-5= -1

4x = -1+5

4x=4

x=1

2x-y=3

2x-(-1)=3

2x+1=3

2x= 3-1

2x= 2

x=1

since the two answers for x are the same therefore:

x = 1