8r-r+1=10-2r

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Solution for 8r-r+1=10-2r equation:


Simplifying
8r + -1r + 1 = 10 + -2r

Reorder the terms:
1 + 8r + -1r = 10 + -2r

Combine like terms: 8r + -1r = 7r
1 + 7r = 10 + -2r

Solving
1 + 7r = 10 + -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 + 7r + 2r = 10 + -2r + 2r

Combine like terms: 7r + 2r = 9r
1 + 9r = 10 + -2r + 2r

Combine like terms: -2r + 2r = 0
1 + 9r = 10 + 0
1 + 9r = 10

Add '-1' to each side of the equation.
1 + -1 + 9r = 10 + -1

Combine like terms: 1 + -1 = 0
0 + 9r = 10 + -1
9r = 10 + -1

Combine like terms: 10 + -1 = 9
9r = 9

Divide each side by '9'.
r = 1

Simplifying
r = 1

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