Question 682010
7.8t + 8.31 = -62.67
Subtract 8.31 from both sides 
7.8t + 8.31 - 8.31 = -62.67 - 8.31
...
7.8t = -70.98
Divide both sides by 7.8
{{{highlight_green(t = -9.1)}}}
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