Question 1140352
x, Nicole
3x, her sister


{{{x+5=(3/4)(3x+5)}}}
-
{{{4x+20=3(3x+5)}}}

{{{4x+20=9x+15}}}

{{{5=5x}}}

{{{highlight(x=1)}}}--------Nicole
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{{{3x=highlight(3)}}}-------sister