73.6k views
5 votes
2d+4=10+5d
i need help

User Tfa
by
8.9k points

2 Answers

4 votes

Answer:

d= -2

Explanation:

1. Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation : 2*d+4-(10+5*d)=0

2. Pull out like factors : -3d - 6 = -3 • (d + 2)

3.Solve : -3 = 0

4. the equation has no soluton because A a non-zero constant never equals zero.

5. then Solve : d+2 = 0

6. Subtract 2 from both sides of the equation :

d = -2

User Uvesten
by
7.4k points
3 votes

Answer:

Explanation:

2*d+4-(10+5*d)=0

-3d - 6 = -3 x (d + 2)

-3 = 0

You know that d+2 = 0

The you subtract 2 from both sides of the equation as it says in the video :

which would end up with -2.

Answer is -2

x is times

Hope this helps you

I did this Khan so this answer is right!

:)

User Cmancre
by
7.4k points