4x-9=-5x-72

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Solution for 4x-9=-5x-72 equation: 



4x-9=-5x-72

We move all terms to the left:

4x-9-(-5x-72)=0

We get rid of parentheses

4x+5x+72-9=0

We add all the numbers together, and all the variables

9x+63=0

We move all terms containing x to the left, all other terms to the right

9x=-63

x=-63/9

x=-7

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