Question 666779
Starting with
{{{((-5)/11)h + 7/9 = 2/9}}}
Multiply the entire quation by 99 to be rid of fractions.
Chose 99 as the lowest common multiple of 9 and 11
...
{{{(9cross(99)(-5)/1cross(11))h + 11cross(99)7/1cross(9) = 11cross(99)2/1cross(9)}}}
-45h + 77 = 22
...
Isolate h
-45h = 22 - 77
-45h = -55
Divide both sides by -45
{{{highlight_green(h = 55/45 = 11/9)}}}
...
Check {{{cartoon(
(-5)/11(11/9) = (-5)/9,
(-5)/9 + 7/9,
2/9)}}}
.....................
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