5x-9+4x=45

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Solution for 5x-9+4x=45 equation: 


Simplifying
5x + -9 + 4x = 45

Reorder the terms:
-9 + 5x + 4x = 45

Combine like terms: 5x + 4x = 9x
-9 + 9x = 45

Solving
-9 + 9x = 45

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 + 9x = 45 + 9

Combine like terms: -9 + 9 = 0
0 + 9x = 45 + 9
9x = 45 + 9

Combine like terms: 45 + 9 = 54
9x = 54

Divide each side by '9'.
x = 6

Simplifying
x = 6

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