Question

Solve 2a − 5d = 30 for d. Show your work

How do i do it? step by step ?

Answer 1

2a-5d+5d=30+5d
2a=30+5d
2a-30=30+5d+30
2a-30=5d
d=(2a-30)/5

Answer 2

2a − 5d = 30

Subtracting 2a from both sides:
-5d = 30 -2a

Dividing both sides by -5:
d = (30 -2a) / -5

Answer 3

(:

Answer 4

Thanks!

Answer 5

u r welcome

Answer 6

np B)

Answer 7

By the way both answers are correct.
Let's suppose a = 25 and d=4
prince haryyy's answer
d=(2a-30)/5

(2a-30)/5 = (50-30)/5 = 4

My answer
d = (30 -2a) / -5

(30 -2a) / -5 = (30 -50) / -5 =4

So, both answers are the same.