Question 879184
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Hi
7(-4-2y) + 4y = 48  substituting y = {{{-4-2y}}}
     -10y = 76
        y = -7.6  and x = 11.2  {{{-4-2(-7.6)}}}
Check ...
{{{7*11.2 + 4 (-7.6) = 48}}}