Which of these strategies would eliminate a variable in the system of equations?
2x+8y=-3
3x+6y=-4
a.)multiply the top equation by -4, multiply the bottom equation by 3, then add the equations.
b.)multiply the top equation by 3, multiply the bottom equation by 4, then subtract the bottom equation from the top equation.
c.)multiply the top equation by 3, multiply the bottom equation by -2, then add the equations.

C) Multiply the top equation by 3, multiply the bottom equation by -2, then add the equations.

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⭐

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

answer:

f(5/2) = 10/3

i hope this you!