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4.9x+5x=25
We move all terms to the left:
4.9x+5x-(25)=0
We add all the numbers together, and all the variables
9.9x-25=0
We move all terms containing x to the left, all other terms to the right
9.9x=25
x=25/9.9
x=2+4.33333333333/8.25
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