Question 196508
{{{(y-7)^2=(y+5)^2}}}
FOIL
{{{y^2 - 14y +49  = y^2 + 10y + 25}}}
Combine the y's on the left, numerical values on the right
y^2 - y^2 - 14y - 10y = 25 - 49
:
-24y = -24
:
y = +1
;
:
Is this true? check in original equation
{{{(1-7)^2=(1+5)^2}}}
36 = 36