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5.4=7.5-0.7x
We move all terms to the left:
5.4-(7.5-0.7x)=0
We add all the numbers together, and all the variables
-(-0.7x+7.5)+5.4=0
We get rid of parentheses
0.7x-7.5+5.4=0
We add all the numbers together, and all the variables
0.7x-2.1=0
We move all terms containing x to the left, all other terms to the right
0.7x=2.1
x=2.1/0.7
x=3+4.4408920985006E-16/0.7
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