90+9x=105+4x

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Solution for 90+9x=105+4x equation:



90+9x=105+4x
We move all terms to the left:
90+9x-(105+4x)=0
We add all the numbers together, and all the variables
9x-(4x+105)+90=0
We get rid of parentheses
9x-4x-105+90=0
We add all the numbers together, and all the variables
5x-15=0
We move all terms containing x to the left, all other terms to the right
5x=15
x=15/5
x=3

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