Question 580480
{{{12-4=7.2+c+4.8}}} Start with the given equation.



{{{10(12-4)=10(7.2+c+4.8)}}} Multiply both sides by 10 to clear out the decimals.



{{{120-40=72+10c+48}}} Distribute and multiply.



{{{80=72+10c+48}}} Combine like terms on the left side.



{{{80=10c+120}}} Combine like terms on the right side.



{{{0=10c+120-80}}} Subtract {{{80}}} from both sides.



{{{-10c=120-80}}} Subtract {{{10c}}} from both sides.



{{{-10c=40}}} Combine like terms on the right side.



{{{c=(40)/(-10)}}} Divide both sides by {{{-10}}} to isolate {{{c}}}.



{{{c=-4}}} Reduce.



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Answer:


So the solution is {{{c=-4}}}