Question 806318
{{{ log(x) + log(1.4) = 2 }}}
{{{ log( 1.4x ) = 2 }}}
The base is {{{ 10 }}}, so
{{{ 1.4x = 10^2 }}}
{{{ x = 100/1.4 }}}
{{{ x = 71.429 }}}
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check:
{{{ log(71.429) + log(1.4) = 2 }}}
{{{ 1.854 + .146 = 2 }}}
{{{ 2.00013 = 2 }}}
close enough
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{{{ ln(3x) + ln(1.3) = 2.4 }}}
{{{ ln( 3.9x ) = 2.4 }}}
{{{ e^2.4 = 3.9x }}}
{{{ x = ( 1/3.9 )*e^2.4 }}}
{{{ x = .256*11.023 }}}
{{{ x = 2.822 }}}
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check:
{{{ 3*2.822 = 8.466 }}}
{{{ ln(3x) + ln(1.3) = 2.4 }}}
{{{ ln(8.466) + ln(1.3) = 2.4 }}}
{{{ 2.136 + .262 = 2.4 }}}
{{{ 2.398 = 2.4 }}}
close enough
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You get the idea now