Question

Please help! Having trouble.

Answer 1

x = 13

Explanation:

`7 √(x - 4) = 15 + 6 \\ 7 √(x - 4) = 21 \\ √(x - 4 =) = 3 \\ x - 4 = 9 \\ x = 13`

Answer 2

B. 13

Explanation:

Let's solve your equation step-by-step.

7√x−4−6=15

Step 1: Add 6 to both sides.

7√x−4−6+6=15+6

7√x−4=21

Step 2: Divide both sides by 7.

7√x−4

7

=

21

7

√x−4=3

Step 3: Solve Square Root.

√x−4=3

x−4=32(Square both sides)

x−4=9

x−4+4=9+4(Add 4 to both sides)

x=13