-3(7+4x)=-105

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Solution for -3(7+4x)=-105 equation: 


Simplifying
-3(7 + 4x) = -105
(7 * -3 + 4x * -3) = -105
(-21 + -12x) = -105

Solving
-21 + -12x = -105

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 = -105 + 21

Combine like terms: -21 + 21 = 0
0 + -12x = -105 + 21
-12x = -105 + 21

Combine like terms: -105 + 21 = -84
-12x = -84

Divide each side by '-12'.
x = 7

Simplifying
x = 7

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