Question

Which of the values in the set {2, 3, 4, 5} is a solution to the equation 2x + 4 = 10?

Answer 1

Number 3 is the answer
because, 2×3+4=10
=6+4=10
10=10

Answer 2

Let's check one by one

First let check it the value of x is 2

2(2)+4 10

4+4 10

8 not equal to 10

LHS not equal to RHS

Therefore value of x not equal to 2

as it does not satisfy the equation

Let's check for 3

2(3)+4 10

6+4 10

10 = 10

Therefore value of x is 3

Similarly,you can also try to put values like 4,5 etc. And you would notice that the value will not satisfy so x=3.....

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