Question 878019
It's like an equation. 
Unknowns on one side, knows on the other.
{{{5(p+2) - 2(p -1) >= 7p + 4}}}
{{{5p+10-2p+2>=7p+4}}}
{{{3p+12>=7p+4}}}
Subtract {{{7p+12}}} from both sides,
{{{3p-7p+12-12>=7p-7p+4-12}}}
{{{-4p>=-8}}}
Divide both sides by {{{-2}}}, remember the direction of the inequality flips when multiplying or dividing by a negative number.
{{{p<=2}}}