Question 269876
The equation we need is
{{{38 + 4x = 45.5 + 2.5x}}}
step 1 - subtract 38 to get
{{{4x = 7.5 + 2.5x}}}
step 2 - subtract 2.5x to get
{{{1.5x = 7.5}}}
step 3 - divide by 1.5 to get
{{{x = 5}}}
in 5 years they will be the same height