-y-4=y+42

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Solution for -y-4=y+42 equation:


Simplifying
-1y + -4 = y + 42

Reorder the terms:
-4 + -1y = y + 42

Reorder the terms:
-4 + -1y = 42 + y

Solving
-4 + -1y = 42 + 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.
-4 + -1y + -1y = 42 + y + -1y

Combine like terms: -1y + -1y = -2y
-4 + -2y = 42 + y + -1y

Combine like terms: y + -1y = 0
-4 + -2y = 42 + 0
-4 + -2y = 42

Add '4' to each side of the equation.
-4 + 4 + -2y = 42 + 4

Combine like terms: -4 + 4 = 0
0 + -2y = 42 + 4
-2y = 42 + 4

Combine like terms: 42 + 4 = 46
-2y = 46

Divide each side by '-2'.
y = -23

Simplifying
y = -23

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