Question 1079971
x, Anu
y, Father


{{{system(y=4x,y-5=7(x-5))}}}

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{{{4x-5=7x-35}}}
{{{-5+35=3x}}}
{{{3x=30}}}
{{{x=10}}}

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{{{y=4*10}}}
{{{highlight(y=40)}}}