(2+y)+y=4

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Solution for (2+y)+y=4 equation: 


Simplifying
(2 + y) + y = 4

Remove parenthesis around (2 + y)
2 + y + y = 4

Combine like terms: y + y = 2y
2 + 2y = 4

Solving
2 + 2y = 4

Solving for variable 'y'.

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

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

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

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

Divide each side by '2'.
y = 1

Simplifying
y = 1

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