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4x+3(0.5x)=99
We move all terms to the left:
4x+3(0.5x)-(99)=0
We add all the numbers together, and all the variables
4x+3(+0.5x)-99=0
We multiply parentheses
4x+0x-99=0
We add all the numbers together, and all the variables
5x-99=0
We move all terms containing x to the left, all other terms to the right
5x=99
x=99/5
x=19+4/5
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