-9-4=3x+8

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Solution for -9-4=3x+8 equation:


Simplifying
-9 + -4 = 3x + 8

Combine like terms: -9 + -4 = -13
-13 = 3x + 8

Reorder the terms:
-13 = 8 + 3x

Solving
-13 = 8 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
-13 + -3x = 8 + 3x + -3x

Combine like terms: 3x + -3x = 0
-13 + -3x = 8 + 0
-13 + -3x = 8

Add '13' to each side of the equation.
-13 + 13 + -3x = 8 + 13

Combine like terms: -13 + 13 = 0
0 + -3x = 8 + 13
-3x = 8 + 13

Combine like terms: 8 + 13 = 21
-3x = 21

Divide each side by '-3'.
x = -7

Simplifying
x = -7

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