Question

(3a - b) / (2a + b) if a = 4 and b = -3

Answer 1

(3x4)-(-3)/(2x4)+(-3) =

= 12+3/8-3

=15/5

=3

Answer 2

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