Question 658400
{{{ t = (1/2)*d }}}
{{{ t + 1  + d + 1 = 62 }}}
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{{{ t + d = 60 }}}
By substitution:
{{{ (1/2)*d + d = 60 }}}
{{{ d + 2d = 120 }}}
{{{ 3d = 120 }}}
{{{ d = 40 }}}
and
{{{ t = (1/2)*d }}}
{{{ t = (1/2)*40 }}}
{{{ t = 20 }}}
Taylor is 20
Dad is 40
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check:
Next year 
Taylor is 21
Dad is 41
{{{ 21 + 41 = 62 }}}
OK