4x+3=-45

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Solution for 4x+3=-45 equation: 


Simplifying
4x + 3 = -45

Reorder the terms:
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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