(y+3)+y=4

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Solution for (y+3)+y=4 equation:


Simplifying
(y + 3) + y = 4

Reorder the terms:
(3 + y) + y = 4

Remove parenthesis around (3 + y)
3 + y + y = 4

Combine like terms: y + y = 2y
3 + 2y = 4

Solving
3 + 2y = 4

Solving for variable 'y'.

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

Add '-3' to each side of the equation.
3 + -3 + 2y = 4 + -3

Combine like terms: 3 + -3 = 0
0 + 2y = 4 + -3
2y = 4 + -3

Combine like terms: 4 + -3 = 1
2y = 1

Divide each side by '2'.
y = 0.5

Simplifying
y = 0.5

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