3+1+p=12
add the numbers
4+p=12
now we do the same thing only different way ok
3+1=4
To add the numbers using a number line , start from zero
Since 3 is positive, Move the points 3 units to the right
since 1 is positive, move the point 1 unit to the right
The result is 4
4+p=12
move constant to the right hand side and change its sign
p=12-4
Subtract the numbers
p=8
now we do the same thing only different way
12-4=12+(-4)=8
Answer:p=8
That's it. hope it wasn't too hard to understand?
PLEASE MARK ME AS BRAINLIEST
To write the subtraction as an addition, first copy the number 12
change the subtraction sign to an addition sign
Write the opposite of 4 as the second term of the sum
to add the numbers using a number line, start from zero
Since 12 is positive, move the point 12 units to the right
Since -4 is negative, move the point 4 units to the left
The result is 8
