2a+9d=25

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Solution for 2a+9d=25 equation: 


Simplifying
2a + 9d = 25

Solving
2a + 9d = 25

Solving for variable 'a'.

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

Add '-9d' to each side of the equation.
2a + 9d + -9d = 25 + -9d

Combine like terms: 9d + -9d = 0
2a + 0 = 25 + -9d
2a = 25 + -9d

Divide each side by '2'.
a = 12.5 + -4.5d

Simplifying
a = 12.5 + -4.5d

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