7(-3-3x)=-210

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


Simplifying
7(-3 + -3x) = -210
(-3 * 7 + -3x * 7) = -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 = -189
-21x = -189

Divide each side by '-21'.
x = 9

Simplifying
x = 9

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