A-(2a+1)=3

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Solution for A-(2a+1)=3 equation:


Simplifying
A + -1(2a + 1) = 3

Reorder the terms:
A + -1(1 + 2a) = 3
A + (1 * -1 + 2a * -1) = 3
A + (-1 + -2a) = 3

Reorder the terms:
-1 + A + -2a = 3

Solving
-1 + A + -2a = 3

Solving for variable 'A'.

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

Add '1' to each side of the equation.
-1 + A + 1 + -2a = 3 + 1

Reorder the terms:
-1 + 1 + A + -2a = 3 + 1

Combine like terms: -1 + 1 = 0
0 + A + -2a = 3 + 1
A + -2a = 3 + 1

Combine like terms: 3 + 1 = 4
A + -2a = 4

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

Combine like terms: -2a + 2a = 0
A + 0 = 4 + 2a
A = 4 + 2a

Simplifying
A = 4 + 2a

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