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6.3=8.7-0.8x
We move all terms to the left:
6.3-(8.7-0.8x)=0
We add all the numbers together, and all the variables
-(-0.8x+8.7)+6.3=0
We get rid of parentheses
0.8x-8.7+6.3=0
We add all the numbers together, and all the variables
0.8x-2.4=0
We move all terms containing x to the left, all other terms to the right
0.8x=2.4
x=2.4/0.8
x=2+0.8/0.8
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