7(7+3x)=-140

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Solution for 7(7+3x)=-140 equation: 


Simplifying
7(7 + 3x) = -140
(7 * 7 + 3x * 7) = -140
(49 + 21x) = -140

Solving
49 + 21x = -140

Solving for variable 'x'.

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

Add '-49' to each side of the equation.
49 + -49 + 21x = -140 + -49

Combine like terms: 49 + -49 = 0
0 + 21x = -140 + -49
21x = -140 + -49

Combine like terms: -140 + -49 = -189
21x = -189

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

Simplifying
x = -9

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