Question

Help help me help help plz help help

Answer 1

Answer:

6 1/6 (i think )

substitute 4 in for a, -5 for b and -7 for c

(4+ 2 * - 7 * - 5)/3 * 4

3*4 = 12

4+2 * - 7 * - 5) / 12

-7 * - 5 = 35 (same sign so positive)

(4+ 2* 35)/12

2*35 = 70 and 70+4 = 74.

74/12 is what we have, and we can simplify this to 37/6 by dividing both the numerator and denominator by 2. now we convert to mixed fraction and get 6 1/6.

Step-by-step explanation: