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.

g = (2, 2)

step-by-step explanation:

given the ratio is 1 : 1 then f is the midpoint of eg

let the coordinates of g = (x, y)

using the midpoint formula

(0 + x) = 1 ( multiply both sides by 2 )

0 + x = 2 ⇒ x = 2

similarly

(4 + y) = 3 ( multiply both sides by 2 )

4 + y = 6 ( subtract 4 from both sides )

y = 2

coordinates of g = (2, 2)

21

step-by-step explanation: