Question

If 2x+y=5 and y-1=0, then the value of x is _______ .

a. 4
b. 2
c. 5
d. 0
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Answer 1

Answer:

The answer is 3

Step-by-step explanation:

y-1=0

y=-1

2x+y=5

2x+(-1)=5

2x-1=5

2x=5+1

x=6/2

x=3

Therefore, he value of x is 3

Hope it will help you

Answer 2

Answer:

y-1=0

y=1

2x+y=5

2x+1=5

2x=4

x=2

Therefore, the answer is (b)2