-r+2r+r-2=(-3+2+1)r-2

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Solution for -r+2r+r-2=(-3+2+1)r-2 equation:


Simplifying
-1r + 2r + r + -2 = (-3 + 2 + 1) * r + -2

Reorder the terms:
-2 + -1r + 2r + r = (-3 + 2 + 1) * r + -2

Combine like terms: -1r + 2r = 1r
-2 + 1r + r = (-3 + 2 + 1) * r + -2

Combine like terms: 1r + r = 2r
-2 + 2r = (-3 + 2 + 1) * r + -2

Combine like terms: -3 + 2 = -1
-2 + 2r = (-1 + 1) * r + -2

Combine like terms: -1 + 1 = 0
-2 + 2r = (0) * r + -2

Anything times zero is zero.
-2 + 2r = 0r + -2

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

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

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

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

Solving
2r = 0

Solving for variable 'r'.

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

Divide each side by '2'.
r = 0

Simplifying
r = 0

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