3-4x=-45

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Solution for 3-4x=-45 equation: 


Simplifying
3 + -4x = -45

Solving
3 + -4x = -45

Solving for variable 'x'.

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

Add '-3' to each side of the equation.
3 + -3 + -4x = -45 + -3

Combine like terms: 3 + -3 = 0
0 + -4x = -45 + -3
-4x = -45 + -3

Combine like terms: -45 + -3 = -48
-4x = -48

Divide each side by '-4'.
x = 12

Simplifying
x = 12

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