m-(m+5-4)=Y

Solution for m-(m+5-4)=Y equation:

Simplifying
m + -1(m + 5 + -4) = Y

Reorder the terms:
m + -1(5 + -4 + m) = Y

Combine like terms: 5 + -4 = 1
m + -1(1 + m) = Y
m + (1 * -1 + m * -1) = Y
m + (-1 + -1m) = Y

Reorder the terms:
-1 + m + -1m = Y

Combine like terms: m + -1m = 0
-1 + 0 = Y
-1 = Y

Solving
-1 = Y

Solving for variable 'Y'.

Move all terms containing Y to the left, all other terms to the right.

Add '-1Y' to each side of the equation.
-1 + -1Y = Y + -1Y

Combine like terms: Y + -1Y = 0
-1 + -1Y = 0

Add '1' to each side of the equation.
-1 + 1 + -1Y = 0 + 1

Combine like terms: -1 + 1 = 0
0 + -1Y = 0 + 1
-1Y = 0 + 1

Combine like terms: 0 + 1 = 1
-1Y = 1

Divide each side by '-1'.
Y = -1

Simplifying
Y = -1