1. In the equation, 3:: + 4 = 12. What does the variable is representing to?II 2. Given in the question above, what is the value of x? 3. 1|What characteristic of mathematics tells about, to combine two numbers you have to use addition? 4. Instead of words mathematical language use operations, numbers= etc. like Trariables, 5 7. Write the mathematical symbols used in the following. 5.1,2,3,4,5___ t5 a,b,c,___x y z 7". +, X = 3 ll}. 1What are the characteristics of mathematical language? 3. 9. ll]