3x+9+4x=8

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


Simplifying
3x + 9 + 4x = 8

Reorder the terms:
9 + 3x + 4x = 8

Combine like terms: 3x + 4x = 7x
9 + 7x = 8

Solving
9 + 7x = 8

Solving for variable 'x'.

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

Add '-9' to each side of the equation.
9 + -9 + 7x = 8 + -9

Combine like terms: 9 + -9 = 0
0 + 7x = 8 + -9
7x = 8 + -9

Combine like terms: 8 + -9 = -1
7x = -1

Divide each side by '7'.
x = -0.1428571429

Simplifying
x = -0.1428571429

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