4+8r-1=4r+57-2r

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Solution for 4+8r-1=4r+57-2r equation:


Simplifying
4 + 8r + -1 = 4r + 57 + -2r

Reorder the terms:
4 + -1 + 8r = 4r + 57 + -2r

Combine like terms: 4 + -1 = 3
3 + 8r = 4r + 57 + -2r

Reorder the terms:
3 + 8r = 57 + 4r + -2r

Combine like terms: 4r + -2r = 2r
3 + 8r = 57 + 2r

Solving
3 + 8r = 57 + 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.
3 + 8r + -2r = 57 + 2r + -2r

Combine like terms: 8r + -2r = 6r
3 + 6r = 57 + 2r + -2r

Combine like terms: 2r + -2r = 0
3 + 6r = 57 + 0
3 + 6r = 57

Add '-3' to each side of the equation.
3 + -3 + 6r = 57 + -3

Combine like terms: 3 + -3 = 0
0 + 6r = 57 + -3
6r = 57 + -3

Combine like terms: 57 + -3 = 54
6r = 54

Divide each side by '6'.
r = 9

Simplifying
r = 9

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