4a+36=13a-45.

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Solution for 4a+36=13a-45. equation:



4a+36=13a-45.
We move all terms to the left:
4a+36-(13a-45.)=0
We add all the numbers together, and all the variables
4a-(13a-45)+36=0
We get rid of parentheses
4a-13a+45+36=0
We add all the numbers together, and all the variables
-9a+81=0
We move all terms containing a to the left, all other terms to the right
-9a=-81
a=-81/-9
a=+9

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