[2Y+1]=7

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Solution for [2Y+1]=7 equation: 


Simplifying
[2Y + 1] = 7

Reorder the terms:
[1 + 2Y] = 7

Remove brackets around [1 + 2Y]
1 + 2Y = 7

Solving
1 + 2Y = 7

Solving for variable 'Y'.

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

Add '-1' to each side of the equation.
1 + -1 + 2Y = 7 + -1

Combine like terms: 1 + -1 = 0
0 + 2Y = 7 + -1
2Y = 7 + -1

Combine like terms: 7 + -1 = 6
2Y = 6

Divide each side by '2'.
Y = 3

Simplifying
Y = 3

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