How do you solve 2( r - 2) = 16?

3 Answers
May 26, 2018

r = 10

Explanation:

Re-arrange and solve, make r the subject.

r-2 = 16/2, r = 8+2, r=10

May 26, 2018

r = 10

Explanation:

As explained below:

Step 1: Open the brackets

2(r-2) = 16

(2xxr) - (2xx2) = 16

2r - 4 = 16

Step 2: Add 4 both sides

2r - 4 + 4 = 16 + 4

2r = 20

r = 20/2

r = 10

Checking the answer:

2(r-2) = 16
2(10-2) = 16
2(8) = 16

May 26, 2018

r=10

Explanation:

Solve:

2(r-2)=16

Expand.

2r-4=16

Add 4 to both sides.

2r=16+4

2r=20

Divide both sides by 2.

r=20/2

r=10