Question

Please Help!!

-115=20+3(4d-2) ​

Answer 1

`d=-(43)/(4)`

Explanation:

First, let's apply the distributive property and multiply 4d and -2 by 3.

We have:

`-115=20+3(4d-2)=\\-115=20+3(4d)+3(-2)=\\-115=20+12d-6`

Now, let's combine like terms.

`-115=20+12d-6=\\-135=12d-6=\\-129=12d=\\-(129)/(12) =d`

Both 129 and 12 are divisible by 3, so let's simplify the fraction:

`d=-(129)/(12) =\\d=-(43)/(4)`

Answer 2

the solution is d = -10.75.

Explanation:

To solve for d in this equation, we need to first simplify it by distributing the 3 on the right side:

-115 = 20 + 12d - 6

Next, we combine like terms on the right side:

-115 = 14 + 12d

Then, we isolate the variable term by subtracting 14 from both sides:

-129 = 12d

Finally, we solve for d by dividing both sides by 12:

d = -10.75

Therefore, the solution is d = -10.75.