Question 1084011
Let point B = 
B( x[2], y[2] )
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{{{ ( -3 + x[2] ) / 2 = 4 }}}
{{{ -3 + x[2] = 8 }}}
{{{ x[2] = 11 }}}
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{{{ ( 0 + y[2] ) / 2 = 6 }}}
{{{ y[2] = 12 }}}
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The coordinates of B are:
B( 11,12 )
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check the math