25x-45x=-4+12

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Solution for 25x-45x=-4+12 equation: 


Simplifying
25x + -45x = -4 + 12

Combine like terms: 25x + -45x = -20x
-20x = -4 + 12

Combine like terms: -4 + 12 = 8
-20x = 8

Solving
-20x = 8

Solving for variable 'x'.

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

Divide each side by '-20'.
x = -0.4

Simplifying
x = -0.4

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