What's is the answer of - 1.1k=-1.21 ps doing equations

The answer (usually called the 'solution') is the number that 'k' must be

if the equation is a true statement.

-1.1 k = - 1.21

Multiply each side by - 1 : 1.1 k = 1.21

Divide each side by 1.1 : k = 1.1