Which expression is equivalent to t+7 +2-5t? Choose the correct answer below. A. 15t
B. 100
C. 4t + 9
D. - 4t +9​

-4t    +9

Step-by-step explanation:

t+7 +2-5t

Combine like terms

t-5t   +7+2

-4t    +9

answer:

the position of equilibrium will shift to the left.

step-by-step explanation:

the general equation for the dissociation of a weak base is

b + h₂o   ⇌   bh⁺ + oh⁻

according to le châtelier's principle, when a stress is applied to a system at equilibrium, the system will respond in a way that tends to relieve the stress.

if you apply a stress by adding more bh⁺ or oh⁻,   the system will respond by moving in a direction that gets rid of the added ions.

the position of equilibrium will shift to the left, forming more of the undissociated base.

the answers c