How do you evaluate \frac { - 27( - 2) - ( - 7) ( - 2) } { - 2( 1) - 2( 3) }?

1 Answer
Nov 19, 2017

-5

Explanation:

-27*(-2) => (-)*(-)=(+) AND (27*2=54)
=>
-27*(-2) = +54


-7*(-2) => (-)*(-)=(+) AND (7*2=14)
=>
-7*(-2) = +14


-2*(1) => (-)*(+)=(-) AND (2*1=2)
=>
-2*(1) = -2


-2*(3) => (-)*(+)=(-) AND (2*3=6)
=>
-2*(3) = -6


=>
(-27(-2)-(-7)(-2))/(-2(1)-2(3))=((+54)-(+14))/((-2)+(-6))=(54-14)/(-2-6)
=>
=(40)/(-8)=(-1)*(40/8)=(-1)*(5)=-5