25=3a-4a

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Solution for 25=3a-4a equation:


Simplifying
25 = 3a + -4a

Combine like terms: 3a + -4a = -1a
25 = -1a

Solving
25 = -1a

Solving for variable 'a'.

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

Add 'a' to each side of the equation.
25 + a = -1a + a

Combine like terms: -1a + a = 0
25 + a = 0

Add '-25' to each side of the equation.
25 + -25 + a = 0 + -25

Combine like terms: 25 + -25 = 0
0 + a = 0 + -25
a = 0 + -25

Combine like terms: 0 + -25 = -25
a = -25

Simplifying
a = -25

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