(y-1)-(4y-7)=

Solution for (y-1)-(4y-7)= equation:

Simplifying
(y + -1) + -1(4y + -7) = 0

Reorder the terms:
(-1 + y) + -1(4y + -7) = 0

Remove parenthesis around (-1 + y)
-1 + y + -1(4y + -7) = 0

Reorder the terms:
-1 + y + -1(-7 + 4y) = 0
-1 + y + (-7 * -1 + 4y * -1) = 0
-1 + y + (7 + -4y) = 0

Reorder the terms:
-1 + 7 + y + -4y = 0

Combine like terms: -1 + 7 = 6
6 + y + -4y = 0

Combine like terms: y + -4y = -3y
6 + -3y = 0

Solving
6 + -3y = 0

Solving for variable 'y'.

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

Add '-6' to each side of the equation.
6 + -6 + -3y = 0 + -6

Combine like terms: 6 + -6 = 0
0 + -3y = 0 + -6
-3y = 0 + -6

Combine like terms: 0 + -6 = -6
-3y = -6

Divide each side by '-3'.
y = 2

Simplifying
y = 2