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.

Answer 1

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.