Look at the following math problems. 10 + 2 = 12 12 − 2 = 10 what are these operations called?

i think it might be fact families

Step-by-step explanation:

this is because they use the 3 same #rrs

step-by-step explanation:

im not sure what the answer is

the solution is x=1

step-by-step explanation:

we are given our   equation as

let's assume

left side function is

right side function is

now, we can draw graph

and then we can get intersection point

the intersection point will be solution

so, the solution is

x=1