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89.7=-3.7891(x)+155.38
We move all terms to the left:
89.7-(-3.7891(x)+155.38)=0
We get rid of parentheses
3.7891x-155.38+89.7=0
We add all the numbers together, and all the variables
3.7891x-65.68=0
We move all terms containing x to the left, all other terms to the right
3.7891x=65.68
x=65.68/3.7891
x=17+1/2.9946257804473
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