A solution set always include

here

Step-by-step explanation:

A solution set in mathematics is the set of values that satisfy a given set of equations or inequalities. For example, the solution set for a set fi of polynomials over a ring R is the subset of R on which the polynomials all vanish (evaluate to 0), formally xR:iI,fi(x)=0. The solution set of the constraints is the feasible region of a constrained optimization problem.

A solution is any value of a variable that makes the specified equation true. A solution set is the set of all variables that makes the equation true. ... If the two sides are equal, the equation is true and thus the value is a solution.

the range is 19

step-by-step explanation:

the range is biggest number minus the smallest, so in this case it would be

41 - 22 = 19

x = -4

step-by-step explanation:

- 20 - 4(x + 3) = 4x

=> -20 - 4x - 12 = 4x

=> - 32 -4x = 4x

=> -32 = 4x + 4x

=> - 32 = 8x

=> -32/8 = x

=> -4 = x