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-0.9=x-69/2.8
We move all terms to the left:
-0.9-(x-69/2.8)=0
We add all the numbers together, and all the variables
-(+x-69/2.8)-0.9=0
We get rid of parentheses
-x-0.9+69/2.8=0
We multiply all the terms by the denominator
-x*2.8+69-(0.9)*2.8=0
We add all the numbers together, and all the variables
-x*2.8+66.48=0
Wy multiply elements
-2.8x+66.48=0
We move all terms containing x to the left, all other terms to the right
-2.8x=-66.48
x=-66.48/-2.8
x=23+1/1.3461538461538
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