Question 203975
looks like your equation is {{{2*((-3)*(-1-5))=72}}}
i don't see any unknowns in there, like x or y or whatever.
not sure what you have.
if i solve this as shown i get
(-1-5) = (-6)
(-3)*(-6) = (18)
2*(18) = 36
36 = 72
which is not a true statement.
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is there supposed to be an x in there somewhere?
could it be the -1 should really be a -x
if so, then your equation could be rewritten as
{{{2*((-3)*(-x-5))=72}}}
you work from the inner parentheses out to the outer parentheses.
(-3)*(-x-5) = (-3)*(-x) - (-3)*(5)
this becomes (3x +15)
2 * (3x+15) becomes 6x + 30
your equation becomes 6x + 30 = 72
subtract 30 from both sides and divide both sides by 6 to get
x = 42/6 = 7
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if we put that in the original equation we get
{{{2*((-3)*(-x-5))=72}}} 
becomes {{{2*((-3)*(-7-5))=72}}} 
becomes {{{2*((-3)*(-12))=72}}} 
becomes {{{2*(36)=72}}}
becomes {{{72=72}}}
which is true
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your answer in this case would be x = 7
IF your equations was as I thought it might be.
if your equation is different than you would get a different answer.
check you problem to see if you got it right.