3(-7-4x)=51

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Solution for 3(-7-4x)=51 equation: 


Simplifying
3(-7 + -4x) = 51
(-7 * 3 + -4x * 3) = 51
(-21 + -12x) = 51

Solving
-21 + -12x = 51

Solving for variable 'x'.

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

Add '21' to each side of the equation.
-21 + 21 + -12x = 51 + 21

Combine like terms: -21 + 21 = 0
0 + -12x = 51 + 21
-12x = 51 + 21

Combine like terms: 51 + 21 = 72
-12x = 72

Divide each side by '-12'.
x = -6

Simplifying
x = -6

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