7(-3-5x)=-21

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Solution for 7(-3-5x)=-21 equation: 


Simplifying
7(-3 + -5x) = -21
(-3 * 7 + -5x * 7) = -21
(-21 + -35x) = -21

Add '21' to each side of the equation.
-21 + 21 + -35x = -21 + 21

Combine like terms: -21 + 21 = 0
0 + -35x = -21 + 21
-35x = -21 + 21

Combine like terms: -21 + 21 = 0
-35x = 0

Solving
-35x = 0

Solving for variable 'x'.

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

Divide each side by '-35'.
x = 0

Simplifying
x = 0

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