-3(7-7x)=210

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Solution for -3(7-7x)=210 equation: 


Simplifying
-3(7 + -7x) = 210
(7 * -3 + -7x * -3) = 210
(-21 + 21x) = 210

Solving
-21 + 21x = 210

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 + 21x = 210 + 21

Combine like terms: -21 + 21 = 0
0 + 21x = 210 + 21
21x = 210 + 21

Combine like terms: 210 + 21 = 231
21x = 231

Divide each side by '21'.
x = 11

Simplifying
x = 11

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