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18 votes
For the equation 2x-y=1 , if x=2 then y=?

User Const
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2 Answers

12 votes
12 votes

Answer:

y = 3

Explanation:

2x - y = 1 ← substitute x = 2 into the equation

2(2) - y = 1

4 - y = 1 ( subtract 4 from both sides )

- y = - 3 ( multiply both sides by - 1 )

y = 3

User Abdulqadir
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2.7k points
8 votes
8 votes

y=3

Explanation:

2x-y=1

if x=2 then

2(2)-y=1

4-y=1

y= 4-1

y=3.

User Rodi
by
3.2k points