3x-4=-25

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Solution for 3x-4=-25 equation: 


Simplifying
3x + -4 = -25

Reorder the terms:
-4 + 3x = -25

Solving
-4 + 3x = -25

Solving for variable 'x'.

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

Add '4' to each side of the equation.
-4 + 4 + 3x = -25 + 4

Combine like terms: -4 + 4 = 0
0 + 3x = -25 + 4
3x = -25 + 4

Combine like terms: -25 + 4 = -21
3x = -21

Divide each side by '3'.
x = -7

Simplifying
x = -7

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