Question 62627
1) Solve:
{{{3(x+1) < 18}}} Simplfy the left side by applying the distributive property.
{{{3x+3 < 18}}} Subtract 3 from both sides.
{{{3x < 15}}} Finally, divide both sides by 3.
{{{x < 5}}}

2)
{{{x+7-8x-9 > 3(x-7)}}} Apply the distributive property to the right side.
{{{x+7-8x-9 > 3x-21}}} Collect like-terms.
{{{-7x-2 > 3x-21}}} Subtract 3x from both sides.
{{{-10x-2 > -21}}} Add 2 to both sides.
{{{-10x > -19}}} Divide both sides by -10...remember to reverse the order of the inequality.
{{{x < 1.9}}}

3) 
The coordinates would be: (-2, 9)