Answer:
d) valued
Step-by-step explanation:
A solution is only for unknown variables.
To find the value for unknown variable is called solving for the variable.
To solve the variable normally and algebraic sentence would be given.
Hence using the sentence we solve the variable
Hence correct answer is
A solution is the value of the variable that makes the algebraic sentence valued.
OPtion a is incorrect as equal is only for numerical values but for a sentence valued is more appropriate
Option b is wrong since added is not correct choice
True is only for a statement but here an algebraic sentence is there
Hence correct answer is option d