a+2=2a-1

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Solution for a+2=2a-1 equation:


Simplifying
a + 2 = 2a + -1

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

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

Solving
2 + a = -1 + 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.
2 + a + -2a = -1 + 2a + -2a

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

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

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

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

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

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

Simplifying
a = 3

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