X+ 8 = -7 me our only got 5 more minutes !

x + 8 = -7

move +8 to the other side

sign changes from +8 to -8

x+8-8= -7-8

x=-7-8

x= -15

x=-15

Step-by-step explanation:

Subtract 8

x-8+8=-7-8

x=-7-8

x=-15

7! = 7×6×5×4×3×2

3! = 3× 2

as 7! is multiple of 3! because 7! contains 3! that is 3× 2 as factor

so 7! /(3! ) = 7× 6× 5× 4

= 42 × 20

= 840

its b) 840✌✌✌

dhruv⭐