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

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


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

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

Combine like terms: 8 + -7 = 1
1 + 8r = 9r + 4 + -4r

Reorder the terms:
1 + 8r = 4 + 9r + -4r

Combine like terms: 9r + -4r = 5r
1 + 8r = 4 + 5r

Solving
1 + 8r = 4 + 5r

Solving for variable 'r'.

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

Add '-5r' to each side of the equation.
1 + 8r + -5r = 4 + 5r + -5r

Combine like terms: 8r + -5r = 3r
1 + 3r = 4 + 5r + -5r

Combine like terms: 5r + -5r = 0
1 + 3r = 4 + 0
1 + 3r = 4

Add '-1' to each side of the equation.
1 + -1 + 3r = 4 + -1

Combine like terms: 1 + -1 = 0
0 + 3r = 4 + -1
3r = 4 + -1

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

Divide each side by '3'.
r = 1

Simplifying
r = 1

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