3x+4+9x=16

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Solution for 3x+4+9x=16 equation:


Simplifying
3x + 4 + 9x = 16

Reorder the terms:
4 + 3x + 9x = 16

Combine like terms: 3x + 9x = 12x
4 + 12x = 16

Solving
4 + 12x = 16

Solving for variable 'x'.

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

Add '-4' to each side of the equation.
4 + -4 + 12x = 16 + -4

Combine like terms: 4 + -4 = 0
0 + 12x = 16 + -4
12x = 16 + -4

Combine like terms: 16 + -4 = 12
12x = 12

Divide each side by '12'.
x = 1

Simplifying
x = 1

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