4+1+r+2r=1+r

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Solution for 4+1+r+2r=1+r equation:


Simplifying
4 + 1 + r + 2r = 1 + r

Combine like terms: 4 + 1 = 5
5 + r + 2r = 1 + r

Combine like terms: r + 2r = 3r
5 + 3r = 1 + r

Solving
5 + 3r = 1 + r

Solving for variable 'r'.

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

Add '-1r' to each side of the equation.
5 + 3r + -1r = 1 + r + -1r

Combine like terms: 3r + -1r = 2r
5 + 2r = 1 + r + -1r

Combine like terms: r + -1r = 0
5 + 2r = 1 + 0
5 + 2r = 1

Add '-5' to each side of the equation.
5 + -5 + 2r = 1 + -5

Combine like terms: 5 + -5 = 0
0 + 2r = 1 + -5
2r = 1 + -5

Combine like terms: 1 + -5 = -4
2r = -4

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

Simplifying
r = -2

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