a-4=2a-5

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Solution for a-4=2a-5 equation:


Simplifying
a + -4 = 2a + -5

Reorder the terms:
-4 + a = 2a + -5

Reorder the terms:
-4 + a = -5 + 2a

Solving
-4 + a = -5 + 2a

Solving for variable 'a'.

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

Add '-2a' to each side of the equation.
-4 + a + -2a = -5 + 2a + -2a

Combine like terms: a + -2a = -1a
-4 + -1a = -5 + 2a + -2a

Combine like terms: 2a + -2a = 0
-4 + -1a = -5 + 0
-4 + -1a = -5

Add '4' to each side of the equation.
-4 + 4 + -1a = -5 + 4

Combine like terms: -4 + 4 = 0
0 + -1a = -5 + 4
-1a = -5 + 4

Combine like terms: -5 + 4 = -1
-1a = -1

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

Simplifying
a = 1

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