Question 1028516
Is this the equation:
{{{ e^( 4x-1) - 3 = 12 }}} ?
If so,.
{{{ e^( 4x-1) = 15 }}}
Take the natural log of both sides
{{{ 4x - 1 = ln( 15 ) }}}
{{{ 4x - 1 = 2.708 }}}
{{{ 4x = 3.708 }}}
{{{ x = .927 }}}
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check:
{{{ e^( 4x-1) - 3 = 12 }}}
{{{ e^( 4*.927-1) - 3 = 12 }}}
{{{ e^( 3.708 - 1 ) - 3 = 12 }}}
{{{ e^2.708 - 3 = 12 }}}
{{{ 14.999 - 3 = 12 }}}
{{{ 11.999 = 12 }}}
OK -error due to rounding off