Question

what does this equal?
-1/5a+21=23​ ​

Answer 1

$\huge\bf{Answer:-}$

Supposing you want this equation to be solved for a:

we start with

$-\dfrac{a}{5}+21=23$

Subtract 21 from both sides:

$-\dfrac{a}{5}=2$

Multiply both sides by 5:

-a=10−a=10

Change sign to both sides:

a=-10a=−10

Answer 2

Answer:

answer's a = -0.1

explanation has been provided above

hope this helps