-2(5x+9)=-78

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Solution for -2(5x+9)=-78 equation:


Simplifying
-2(5x + 9) = -78

Reorder the terms:
-2(9 + 5x) = -78
(9 * -2 + 5x * -2) = -78
(-18 + -10x) = -78

Solving
-18 + -10x = -78

Solving for variable 'x'.

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

Add '18' to each side of the equation.
-18 + 18 + -10x = -78 + 18

Combine like terms: -18 + 18 = 0
0 + -10x = -78 + 18
-10x = -78 + 18

Combine like terms: -78 + 18 = -60
-10x = -60

Divide each side by '-10'.
x = 6

Simplifying
x = 6

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