9+9r-2=9r+35-7r

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Solution for 9+9r-2=9r+35-7r equation:


Simplifying
9 + 9r + -2 = 9r + 35 + -7r

Reorder the terms:
9 + -2 + 9r = 9r + 35 + -7r

Combine like terms: 9 + -2 = 7
7 + 9r = 9r + 35 + -7r

Reorder the terms:
7 + 9r = 35 + 9r + -7r

Combine like terms: 9r + -7r = 2r
7 + 9r = 35 + 2r

Solving
7 + 9r = 35 + 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.
7 + 9r + -2r = 35 + 2r + -2r

Combine like terms: 9r + -2r = 7r
7 + 7r = 35 + 2r + -2r

Combine like terms: 2r + -2r = 0
7 + 7r = 35 + 0
7 + 7r = 35

Add '-7' to each side of the equation.
7 + -7 + 7r = 35 + -7

Combine like terms: 7 + -7 = 0
0 + 7r = 35 + -7
7r = 35 + -7

Combine like terms: 35 + -7 = 28
7r = 28

Divide each side by '7'.
r = 4

Simplifying
r = 4

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