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

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


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

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

Combine like terms: 3r + r = 4r
-1 + 4r = 2(1 + -2r)
-1 + 4r = (1 * 2 + -2r * 2)
-1 + 4r = (2 + -4r)

Solving
-1 + 4r = 2 + -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.
-1 + 4r + 4r = 2 + -4r + 4r

Combine like terms: 4r + 4r = 8r
-1 + 8r = 2 + -4r + 4r

Combine like terms: -4r + 4r = 0
-1 + 8r = 2 + 0
-1 + 8r = 2

Add '1' to each side of the equation.
-1 + 1 + 8r = 2 + 1

Combine like terms: -1 + 1 = 0
0 + 8r = 2 + 1
8r = 2 + 1

Combine like terms: 2 + 1 = 3
8r = 3

Divide each side by '8'.
r = 0.375

Simplifying
r = 0.375

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