Question 14945
5(x-3)+2(3-x)=12
{{{5*x-5*3+2*3-2*x=12}}}
5x-15+6-2x=12
5x-2x-15+6=12
3x-9=12
3x=12+9
3x=21 ------->Divide by 3
x = 7

OK