Question 1203467
if 
{{{m}}} {{{deg=(5x-4) }}}
{{{m}}}{{{ gef=(7x-8) }}}
{{{m}}}{{{ deh=(9y+5) }}}

find the values of {{{x}}} and {{{y}}}


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{{{m}}} {{{gef=(7x-8)}}}  and m{{{ deh=(9y+5)}}} is same, so


{{{7x-8 =9y+5}}}....solve for {{{y}}}

{{{7x-8 -5=9y}}}

{{{y=(7x-13)/9}}}.......eq.1


if {{{m}}} {{{deg=(5x-4)}}}, we also know that {{{m}}} {{{ deg= 180-deh}}}, so we have


{{{(5x-4)=180-(9y+5)}}}.....solve for {{{y}}}

{{{5x-4=180-9y-5}}}

{{{9y=180-5+4-5x}}}

{{{9y=179-5x}}}

{{{y=(179-5x)/9}}}....eq.2



from eq.1 and eq.2 we have

{{{(7x-13)/9=(179-5x)/9}}}

{{{7x-13=179-5x}}}

{{{7x+5x=179+13}}}

{{{12x=192}}}

{{{x=192/12}}}

{{{x=16}}}


go to

{{{y=(7*16-13)/9}}}.......eq.1, substitute {{{x}}}

{{{y=99/9}}}

{{{y=11}}}