Question 257811
Here is the original question
(i) {{{3m+4=19-2n}}}
I notice you have two variables here. ALso M is next to the n on the keyboard, so it could be one variable. We have four options. Hopefully one of these will answer your question.
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option 1 - solve (i) for m
{{{3m+4=19-2n}}}
subtract 4 from both sides to get
{{{3m = 19 - 4 -2n}}}
divide by 3 to get
{{{m = (-2/3)n + 5}}}
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option 2 - solve (i) for n
{{{3m+4=19-2n}}}
subtract 19 from both sides to get
{{{3m + 4 - 19 = -2n}}}
divide by -2 to get
{{{n = (-3/2)n - 15/2}}}
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option 3 - m=n solve (i) for m
{{{3m+4=19-2m}}}
subtract 4 from both sides to get
{{{3m = 19 - 4 -2m}}}
add 2m to both sides to get
{{{5m = 15}}}
divide by 5 to get
{{{m = 3}}}
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option 4 - m=n solve (i) for n
{{{3n+4=19-2n}}}
subtract 4 from both sides to get
{{{3n = 19 - 4 -2n}}}
add 2n to both sides to get
{{{5n = 15}}}
divide by 5 to get
{{{n = 3}}}