(3x4)-(-3)/(2x4)+(-3) =
= 12+3/8-3
=15/5
=3
3
substitute the given values for a and b into the expression
(( 3 × 4 ) - ( - 3 )) / (( 2 × 4 ) - 3 )
= (12 + 3 ) / ( 8 - 3 ) = 15 / 5 = 3
