7-25=2a

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Solution for 7-25=2a equation:


Simplifying
7 + -25 = 2a

Combine like terms: 7 + -25 = -18
-18 = 2a

Solving
-18 = 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.
-18 + -2a = 2a + -2a

Combine like terms: 2a + -2a = 0
-18 + -2a = 0

Add '18' to each side of the equation.
-18 + 18 + -2a = 0 + 18

Combine like terms: -18 + 18 = 0
0 + -2a = 0 + 18
-2a = 0 + 18

Combine like terms: 0 + 18 = 18
-2a = 18

Divide each side by '-2'.
a = -9

Simplifying
a = -9

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