PLEASE HELP?

What does it mean for a number to be the "solution" to an equation?

Give an example of a variable equation and its solution.
Explain in complete sentences how you know that number is the solution.

Question

PLEASE HELP?

What does it mean for a number to be the "solution" to an equation? 



Give an example of a variable equation and its solution.
Explain in complete sentences how you know that number is the solution.

anonymous · Answer

consider the eq 
2x+4= 8
so solving it
we find 
2x=8-4
i.e. 2x=4
i.e. x=4/2
x=2 
now if we sunstitute x=2 in the eq we must find LHS= RHS 
Let us take LHS=2x+4 =2*2+4=4+4=8 =RHS
thus x=2 is the solution of the given eq.