Question

Check whether LHS and RHS for the given value of x . 4(x-5)=21for x=11

Answer 1

hi friend .
in the LHS part 
=4(x-5)
=for the value x=11
=4(11-5)
=4*6
24≠21 
which shows LHS is not equal to RHS.
Hope this will you .
Thanks.

Answer 2

let x be 11

$lhs = 4(x - 5) \: \: \: \: \: \: \: \: \: \: rhs = 21 \\ = 4(11 - 5) \\ = 44 - 20 \\ = 24$
As, LHS ≠ RHS

♦ It is not correct