-2=2r-2+2r

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Solution for -2=2r-2+2r equation:


Simplifying
-2 = 2r + -2 + 2r

Reorder the terms:
-2 = -2 + 2r + 2r

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

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

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

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

Solving
0 = 4r

Solving for variable 'r'.

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

Add '-4r' to each side of the equation.
0 + -4r = 4r + -4r
Remove the zero:
-4r = 4r + -4r

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

Divide each side by '-4'.
r = 0

Simplifying
r = 0

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