Thomas Sowell said, "There are no solutions, only trade-offs." What do you think he meant by this?

The perfect solution doesn't exist, but acknowledging that you are making trade- offs will help you make decisions and keep a project or plan moving. ... Seeking perfection will lead to inaction and ultimate failure.

Explanation:

Hope this Helps

the correct answer is b

hope i someone

simplify brackets

8 - 2a - 7 = a + 40

simplify 8 - 2a - 7 to -2a + 1

-2a + 1 = a + 40

add 2a to both sides

1 = a + 40 + 2a

simplify a + 40 + 2a to 3a + 40

1 = 3a + 40

subtract 40 from both sides

1 - 40 = 3a

simplify 1 - 40 o -39

-39 = 3a

divide both sides by 3

-39/3 = a

simplify 39/3 to 13

-13 = a

switch sides

a = -13