Which equation has the solution x = 3 ? 5x+ 4 = 22
6x + 1 = -19
3x - 2 = 34
6x + 6 = 24

D

Step-by-step explanation:

To see whuch equation has solution x=3. we can just plug x=3 into each equation to see which is correct. Let's actually solve each equation for practice.

A. Incorrect

5x+4=22                    [subtract both sides by 4]

5x=18                         [divide both sides by 5]

x=18/5

B. Incorrect

6x+1=-19                    [subtract both sides by 1]

6x=-20                       [divide both sides by 6]

x=-20/6

C. Incorrect

3x-2=34                    [add both sides by 2]

3x=36                        [divide both sides by 3]

x=12

D. Correct

6x+6=24                    [subtract both sides by 6]

6x=18                         [divide both sides by 6]

x=3

Now, we know that D is correct.

i can you with this sweetie!

step-by-step explanation:

the radius is 2 times the diameter.

step-by-step explanation: