3x+9+x-4=17

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Solution for 3x+9+x-4=17 equation:


Simplifying
3x + 9 + x + -4 = 17

Reorder the terms:
9 + -4 + 3x + x = 17

Combine like terms: 9 + -4 = 5
5 + 3x + x = 17

Combine like terms: 3x + x = 4x
5 + 4x = 17

Solving
5 + 4x = 17

Solving for variable 'x'.

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

Add '-5' to each side of the equation.
5 + -5 + 4x = 17 + -5

Combine like terms: 5 + -5 = 0
0 + 4x = 17 + -5
4x = 17 + -5

Combine like terms: 17 + -5 = 12
4x = 12

Divide each side by '4'.
x = 3

Simplifying
x = 3

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