Question

1. \left(-\frac{4}{5} - 9x\

ight) + \left(\frac{2}{3} + 2x\
ight)

Explanation:

Step1: Remove parentheses

$-\frac{4}{5} - 9x + \frac{2}{3} + 2x$

Step2: Combine like terms (x terms)

$-9x + 2x = -7x$

Step3: Combine constant terms

$-\frac{4}{5} + \frac{2}{3} = -\frac{12}{15} + \frac{10}{15} = -\frac{2}{15}$

Step4: Combine results

$-7x - \frac{2}{15}$

Answer:

$-7x - \frac{2}{15}$