-37 + n = -56 for n?

-37 + n = -56
add 37 to both sides of the equation
-37 + n +37 = -56 + 37
this gives n = -56 + 37
answer n = -19

first transpose the -37 so that you can solve for n

so n= 37 - 56

because you transposed the -37 to the other side, you need to change its sign, that's why it became +37

so now add 37 to -56

n = -19

CHECKING: (to check, substitute the final answer that you got to the "n")

-37 + (-19) = -56
-56 = -56

-37 + n = -56
+37 +37
n = -19 n= -19

-37 + n + 37 = -56 + 37
n = -19

-37 + n = -56
n = -56 + 37
n = - 19
....................

n=-19

n = - 56 + 37
n = - 19

-37 + n = -56
n = -56 + 37
n = -19