2a+2=9

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Solution for 2a+2=9 equation: 


Simplifying
2a + 2 = 9

Reorder the terms:
2 + 2a = 9

Solving
2 + 2a = 9

Solving for variable 'a'.

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

Add '-2' to each side of the equation.
2 + -2 + 2a = 9 + -2

Combine like terms: 2 + -2 = 0
0 + 2a = 9 + -2
2a = 9 + -2

Combine like terms: 9 + -2 = 7
2a = 7

Divide each side by '2'.
a = 3.5

Simplifying
a = 3.5

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