9+18r-8=6r+145-4r

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Solution for 9+18r-8=6r+145-4r equation:


Simplifying
9 + 18r + -8 = 6r + 145 + -4r

Reorder the terms:
9 + -8 + 18r = 6r + 145 + -4r

Combine like terms: 9 + -8 = 1
1 + 18r = 6r + 145 + -4r

Reorder the terms:
1 + 18r = 145 + 6r + -4r

Combine like terms: 6r + -4r = 2r
1 + 18r = 145 + 2r

Solving
1 + 18r = 145 + 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.
1 + 18r + -2r = 145 + 2r + -2r

Combine like terms: 18r + -2r = 16r
1 + 16r = 145 + 2r + -2r

Combine like terms: 2r + -2r = 0
1 + 16r = 145 + 0
1 + 16r = 145

Add '-1' to each side of the equation.
1 + -1 + 16r = 145 + -1

Combine like terms: 1 + -1 = 0
0 + 16r = 145 + -1
16r = 145 + -1

Combine like terms: 145 + -1 = 144
16r = 144

Divide each side by '16'.
r = 9

Simplifying
r = 9

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