-3(1+7x)=102

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Solution for -3(1+7x)=102 equation: 


Simplifying
-3(1 + 7x) = 102
(1 * -3 + 7x * -3) = 102
(-3 + -21x) = 102

Solving
-3 + -21x = 102

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 + -21x = 102 + 3

Combine like terms: -3 + 3 = 0
0 + -21x = 102 + 3
-21x = 102 + 3

Combine like terms: 102 + 3 = 105
-21x = 105

Divide each side by '-21'.
x = -5

Simplifying
x = -5

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