10r-89=11r-98

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Solution for 10r-89=11r-98 equation:


Simplifying
10r + -89 = 11r + -98

Reorder the terms:
-89 + 10r = 11r + -98

Reorder the terms:
-89 + 10r = -98 + 11r

Solving
-89 + 10r = -98 + 11r

Solving for variable 'r'.

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

Add '-11r' to each side of the equation.
-89 + 10r + -11r = -98 + 11r + -11r

Combine like terms: 10r + -11r = -1r
-89 + -1r = -98 + 11r + -11r

Combine like terms: 11r + -11r = 0
-89 + -1r = -98 + 0
-89 + -1r = -98

Add '89' to each side of the equation.
-89 + 89 + -1r = -98 + 89

Combine like terms: -89 + 89 = 0
0 + -1r = -98 + 89
-1r = -98 + 89

Combine like terms: -98 + 89 = -9
-1r = -9

Divide each side by '-1'.
r = 9

Simplifying
r = 9

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