5(9x-21)=-690

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Solution for 5(9x-21)=-690 equation:


Simplifying
5(9x + -21) = -690

Reorder the terms:
5(-21 + 9x) = -690
(-21 * 5 + 9x * 5) = -690
(-105 + 45x) = -690

Solving
-105 + 45x = -690

Solving for variable 'x'.

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

Add '105' to each side of the equation.
-105 + 105 + 45x = -690 + 105

Combine like terms: -105 + 105 = 0
0 + 45x = -690 + 105
45x = -690 + 105

Combine like terms: -690 + 105 = -585
45x = -585

Divide each side by '45'.
x = -13

Simplifying
x = -13

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