7(-1+3x)=-217

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Solution for 7(-1+3x)=-217 equation: 


Simplifying
7(-1 + 3x) = -217
(-1 * 7 + 3x * 7) = -217
(-7 + 21x) = -217

Solving
-7 + 21x = -217

Solving for variable 'x'.

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

Add '7' to each side of the equation.
-7 + 7 + 21x = -217 + 7

Combine like terms: -7 + 7 = 0
0 + 21x = -217 + 7
21x = -217 + 7

Combine like terms: -217 + 7 = -210
21x = -210

Divide each side by '21'.
x = -10

Simplifying
x = -10

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