7x+8.7=90

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Solution for 7x+8.7=90 equation: 



7x+8.7=90

We move all terms to the left:

7x+8.7-(90)=0

We add all the numbers together, and all the variables

7x-81.3=0

We move all terms containing x to the left, all other terms to the right

7x=81.3

x=81.3/7

x=11+3.3076923076923/5.3846153846154

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