Question

Question 80 Plz fast

Answer 1

Answer:

$\frac{3}{2}$ a

Step-by-step explanation:

Given

a - $\frac{a}{4}$ + $\frac{3}{4}$ a

Collect the terms by adding their coefficients, that is

1 - $\frac{1}{4}$ + $\frac{3}{4}$

= $\frac{4}{4}$ - $\frac{1}{4}$ + $\frac{3}{4}$ = $\frac{3}{4}$ + $\frac{3}{4}$ = $\frac{6}{4}$ = $\frac{3}{2}$

Thus

a - $\frac{a}{4}$ + $\frac{3}{4}$ a = $\frac{3}{2}$ a