Answer:
x is the variable number
addiction
Step-by-step explanation:
thats what ad is
The missing value is 10
-3 = 7 -x
Solve for x
Subtract 7 from each side
-3-7 = 7 -x -7
-10 = -x
Multiply by -1
-10 * -1 = -x*-1
10 =x
