-3(4-5x)=-42

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Solution for -3(4-5x)=-42 equation: 


Simplifying
-3(4 + -5x) = -42
(4 * -3 + -5x * -3) = -42
(-12 + 15x) = -42

Solving
-12 + 15x = -42

Solving for variable 'x'.

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

Add '12' to each side of the equation.
-12 + 12 + 15x = -42 + 12

Combine like terms: -12 + 12 = 0
0 + 15x = -42 + 12
15x = -42 + 12

Combine like terms: -42 + 12 = -30
15x = -30

Divide each side by '15'.
x = -2

Simplifying
x = -2

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