12 - 9 = 15d + 9? please help with operations
Please do not keep posting the same problem over and over. You try to do this one, and I'll check your work in an hour.
12-9=15d+9
3=15d+9
3-9=15d
-6=15d
15d= -6
3*5*d= -3*2 Divide with 3
5d= -2 Divide with 5
d= -2/5= -0.4
To solve this equation, we need to isolate the variable "d", so let's go step by step.
First, let's simplify the left side of the equation:
12 - 9 = 3
So our equation becomes:
3 = 15d + 9
Now, let's rearrange the equation by subtracting 9 from both sides to move the constant term to the other side:
3 - 9 = 15d
Simplifying further:
-6 = 15d
Finally, to solve for "d", we need to isolate the variable on one side of the equation. In this case, we can divide both sides by 15:
-6/15 = d
Simplifying the fraction:
-2/5 = d
So, the value of "d" that satisfies the equation 12 - 9 = 15d + 9 is -2/5 or -0.4.