3(5-4x)=-1

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Solution for 3(5-4x)=-1 equation: 


Simplifying
3(5 + -4x) = -1
(5 * 3 + -4x * 3) = -1
(15 + -12x) = -1

Solving
15 + -12x = -1

Solving for variable 'x'.

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

Add '-15' to each side of the equation.
15 + -15 + -12x = -1 + -15

Combine like terms: 15 + -15 = 0
0 + -12x = -1 + -15
-12x = -1 + -15

Combine like terms: -1 + -15 = -16
-12x = -16

Divide each side by '-12'.
x = 1.333333333

Simplifying
x = 1.333333333

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