What is the simplified expression for the expression below?

7(x – 4) – 3(x + 5)
a.4x – 43
b.4x + 1
c.4x – 13
d.4x – 9

The answer is A

Step-by-step explanation:

Distribute:

=(7)(x)+(7)(−4)+(−3)(x)+(−3)(5)

=7x+−28+−3x+−15

Combine Like Terms:

=7x+−28+−3x+−15

=(7x+−3x)+(−28+−15)

=4x+−43

because linear equations are a lot simpler than quadratics equations, and linear equations formula is a lot easier to memorize. that's why i think they're harder.