7+4r-5=8r+9-5r

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Solution for 7+4r-5=8r+9-5r equation: 


Simplifying
7 + 4r + -5 = 8r + 9 + -5r

Reorder the terms:
7 + -5 + 4r = 8r + 9 + -5r

Combine like terms: 7 + -5 = 2
2 + 4r = 8r + 9 + -5r

Reorder the terms:
2 + 4r = 9 + 8r + -5r

Combine like terms: 8r + -5r = 3r
2 + 4r = 9 + 3r

Solving
2 + 4r = 9 + 3r

Solving for variable 'r'.

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

Add '-3r' to each side of the equation.
2 + 4r + -3r = 9 + 3r + -3r

Combine like terms: 4r + -3r = 1r
2 + 1r = 9 + 3r + -3r

Combine like terms: 3r + -3r = 0
2 + 1r = 9 + 0
2 + 1r = 9

Add '-2' to each side of the equation.
2 + -2 + 1r = 9 + -2

Combine like terms: 2 + -2 = 0
0 + 1r = 9 + -2
1r = 9 + -2

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

Divide each side by '1'.
r = 7

Simplifying
r = 7

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