2a-1=-(a+4)

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Solution for 2a-1=-(a+4) equation:


Simplifying
2a + -1 = -1(a + 4)

Reorder the terms:
-1 + 2a = -1(a + 4)

Reorder the terms:
-1 + 2a = -1(4 + a)
-1 + 2a = (4 * -1 + a * -1)
-1 + 2a = (-4 + -1a)

Solving
-1 + 2a = -4 + -1a

Solving for variable 'a'.

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

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

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

Combine like terms: -1a + a = 0
-1 + 3a = -4 + 0
-1 + 3a = -4

Add '1' to each side of the equation.
-1 + 1 + 3a = -4 + 1

Combine like terms: -1 + 1 = 0
0 + 3a = -4 + 1
3a = -4 + 1

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

Divide each side by '3'.
a = -1

Simplifying
a = -1

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