3+9r-1=7r+51-5r

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Solution for 3+9r-1=7r+51-5r equation:


Simplifying
3 + 9r + -1 = 7r + 51 + -5r

Reorder the terms:
3 + -1 + 9r = 7r + 51 + -5r

Combine like terms: 3 + -1 = 2
2 + 9r = 7r + 51 + -5r

Reorder the terms:
2 + 9r = 51 + 7r + -5r

Combine like terms: 7r + -5r = 2r
2 + 9r = 51 + 2r

Solving
2 + 9r = 51 + 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.
2 + 9r + -2r = 51 + 2r + -2r

Combine like terms: 9r + -2r = 7r
2 + 7r = 51 + 2r + -2r

Combine like terms: 2r + -2r = 0
2 + 7r = 51 + 0
2 + 7r = 51

Add '-2' to each side of the equation.
2 + -2 + 7r = 51 + -2

Combine like terms: 2 + -2 = 0
0 + 7r = 51 + -2
7r = 51 + -2

Combine like terms: 51 + -2 = 49
7r = 49

Divide each side by '7'.
r = 7

Simplifying
r = 7

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