3-1=2a

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Solution for 3-1=2a equation:


Simplifying
3 + -1 = 2a

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

Solving
2 = 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 + -2a = 2a + -2a

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

Add '-2' to each side of the equation.
2 + -2 + -2a = 0 + -2

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

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

Divide each side by '-2'.
a = 1

Simplifying
a = 1

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