Question 668670
Remember the direction change when multiplying or dividing by a negative.
1)
{{{7y - 15 - 4y <= -18}}}
{{{3y <= -18 + 15}}}
{{{3y <= -3}}}
{{{highlight_green(y <= -1)}}}
...
2)
19 - 4m > 4m + 11
-4m - 4m > -19 + 11
-8m > -8
{{{highlight_green(m < 1)}}}
...
3)
{{{(-5/6)d + 8 > 13}}}
-5d + 48 > 78
-5d > 78 - 48
-5d > 30
{{{highlight_green(d < -6)}}}
...
4)
{{{2(3x+1) <= 4(2x-3)}}}
{{{6x + 2 <= 8x - 12}}}
{{{6x - 8x <= -12 - 2}}}
{{{-2x <= -14}}}
{{{highlight_green(x >= 7)}}}
...
5)
14 - {{{2/5}}}h > 13.9 - {{{3/10}}}h 
140 - 4h > 139.0 - 3h
-4h + 3h > 139 - 140
-h > -1
{{{highlight_green(h < 1)}}}

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