3a-5a=7

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Solution for 3a-5a=7 equation: 


Simplifying
3a + -5a = 7

Combine like terms: 3a + -5a = -2a
-2a = 7

Solving
-2a = 7

Solving for variable 'a'.

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

Divide each side by '-2'.
a = -3.5

Simplifying
a = -3.5

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