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3.5(7+9)=x
We move all terms to the left:
3.5(7+9)-(x)=0
We add all the numbers together, and all the variables
-x+3.516=0
We add all the numbers together, and all the variables
-1x+3.516=0
We move all terms containing x to the left, all other terms to the right
-x=-3.516
x=-3.516/-1
x=3+0.516/1
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