2r+2(r+200)=1100

Solution for 2r+2(r+200)=1100 equation:

Simplifying
2r + 2(r + 200) = 1100

Reorder the terms:
2r + 2(200 + r) = 1100
2r + (200 * 2 + r * 2) = 1100
2r + (400 + 2r) = 1100

Reorder the terms:
400 + 2r + 2r = 1100

Combine like terms: 2r + 2r = 4r
400 + 4r = 1100

Solving
400 + 4r = 1100

Solving for variable 'r'.

Move all terms containing r to the left, all other terms to the right.

Add '-400' to each side of the equation.
400 + -400 + 4r = 1100 + -400

Combine like terms: 400 + -400 = 0
0 + 4r = 1100 + -400
4r = 1100 + -400

Combine like terms: 1100 + -400 = 700
4r = 700

Divide each side by '4'.
r = 175

Simplifying
r = 175