Answer:
20 is the answer
Step-by-step explanation:
I did the math.hope it helps :)
The number is 21 because 2 is 1 doubled, and 2+1 is 3.
<span>Simplifying
X + 12 = 30
Reorder the terms:
12 + X = 30
Solving
12 + X = 30
Solving for variable 'X'.
Move all terms containing X to the left, all other terms to the right.
Add '-12' to each side of the equation.
12 + -12 + X = 30 + -12
Combine like terms: 12 + -12 = 0
0 + X = 30 + -12
X = 30 + -12
Combine like terms: 30 + -12 = 18
X = 18
Simplifying
X = 18</span>
Answer:
The second
Step-by-step explanation:
is the correct equation
I think it’s C because I did have this question but I’m not sure
