3x+5+4x=9x+18

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Solution for 3x+5+4x=9x+18 equation:


Simplifying
3x + 5 + 4x = 9x + 18

Reorder the terms:
5 + 3x + 4x = 9x + 18

Combine like terms: 3x + 4x = 7x
5 + 7x = 9x + 18

Reorder the terms:
5 + 7x = 18 + 9x

Solving
5 + 7x = 18 + 9x

Solving for variable 'x'.

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

Add '-9x' to each side of the equation.
5 + 7x + -9x = 18 + 9x + -9x

Combine like terms: 7x + -9x = -2x
5 + -2x = 18 + 9x + -9x

Combine like terms: 9x + -9x = 0
5 + -2x = 18 + 0
5 + -2x = 18

Add '-5' to each side of the equation.
5 + -5 + -2x = 18 + -5

Combine like terms: 5 + -5 = 0
0 + -2x = 18 + -5
-2x = 18 + -5

Combine like terms: 18 + -5 = 13
-2x = 13

Divide each side by '-2'.
x = -6.5

Simplifying
x = -6.5

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