105=7(3-3x)

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


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

Solving
105 = 21 + -21x

Solving for variable 'x'.

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

Add '21x' to each side of the equation.
105 + 21x = 21 + -21x + 21x

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

Add '-105' to each side of the equation.
105 + -105 + 21x = 21 + -105

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

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

Divide each side by '21'.
x = -4

Simplifying
x = -4

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