How do you solve $-8.7e^(6.6-6x)-7=-32.8$ ?

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Answer 1 · 2016-08-04T08:57:27

$x=0.9188$

Let us rewrite the given eqn., by removing all $-ve$ signs, as

$8.7e^(6.6-6x)+7=32.8$

$rArr 8.7e^(6.6-6x)=25.8$

$rArr e^(6.6-6x)=25.8/8.7$

$rArr log_10{e^(6.6-6x)}=log_10 25.8-log_10 8.7$

$rArr (6.6-6x)log_10e=1.4116-0.9395=0.4721$

$rArr (6.6-6x)(0.4343)=0.4721$

$rArr (6.6-6x)=0.4721/0.4343=1.087$

$rArr (6.6-1.087)/6=x=0.9188$ .

How do you solve -8.7e^(6.6-6x)-7=-32.8-8.7e^(6.6-6x)-7=-32.8?