Question

10 is the sum of 1 and two times a number. Have to write it in number form

Answer 1

Answer:4.5

Explanation:

2 times 4.5=9. 9+1=10

so answer is 4.5

Answer 2

10=1+2a or 2a+1=10

A sum is the answer to an addition equation. 1 is being added to 2a. A number can be written as any letter in the alphabet(called a variable in math terms).

hope it helps!