3x–7x=60
Solving linear equations

x = -15

Step-by-step explanation:

3x–7x=60

Combine like terms

-4x = 60

Divide by -4

-4x/-4 = 60/-4

x = -15

 x=-15

Step-by-step explanation:

3x -7x =60  

-4x = 60

x= -15  

answer:

step-by-step explanation:

here, the total dishes = 10

dishes having meat = 3 ( chicken, meatloaf and hamburger )

thus, the probability of having meat on the chosen dishes = number of dishes having meat / total dishes

=

therefore, the probability of not having meat = 1- the probability of having meat on the chosen dishes

=

=

=

⇒ option b is correct.