[2a+7]=a-4

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Solution for [2a+7]=a-4 equation:


Simplifying
[2a + 7] = a + -4

Reorder the terms:
[7 + 2a] = a + -4

Remove brackets around [7 + 2a]
7 + 2a = a + -4

Reorder the terms:
7 + 2a = -4 + a

Solving
7 + 2a = -4 + a

Solving for variable 'a'.

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

Add '-1a' to each side of the equation.
7 + 2a + -1a = -4 + a + -1a

Combine like terms: 2a + -1a = 1a
7 + 1a = -4 + a + -1a

Combine like terms: a + -1a = 0
7 + 1a = -4 + 0
7 + 1a = -4

Add '-7' to each side of the equation.
7 + -7 + 1a = -4 + -7

Combine like terms: 7 + -7 = 0
0 + 1a = -4 + -7
1a = -4 + -7

Combine like terms: -4 + -7 = -11
1a = -11

Divide each side by '1'.
a = -11

Simplifying
a = -11

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