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0.49x.49+0.21(.49-5)=9.45
We move all terms to the left:
0.49x.49+0.21(.49-5)-(9.45)=0
We add all the numbers together, and all the variables
0.49x.49+0.21(-4.51)-(9.45)=0
We add all the numbers together, and all the variables
0.49x.49-10.3971=0
We move all terms containing x to the left, all other terms to the right
0.49x.49=10.3971
x=10.3971/1
x=10.3971
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