4=r+r

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Solution for 4=r+r equation:


Simplifying
4 = r + r

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

Solving
4 = 2r

Solving for variable 'r'.

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

Add '-2r' to each side of the equation.
4 + -2r = 2r + -2r

Combine like terms: 2r + -2r = 0
4 + -2r = 0

Add '-4' to each side of the equation.
4 + -4 + -2r = 0 + -4

Combine like terms: 4 + -4 = 0
0 + -2r = 0 + -4
-2r = 0 + -4

Combine like terms: 0 + -4 = -4
-2r = -4

Divide each side by '-2'.
r = 2

Simplifying
r = 2

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