4+10r-3=9r+9-7r

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Solution for 4+10r-3=9r+9-7r equation: 


Simplifying
4 + 10r + -3 = 9r + 9 + -7r

Reorder the terms:
4 + -3 + 10r = 9r + 9 + -7r

Combine like terms: 4 + -3 = 1
1 + 10r = 9r + 9 + -7r

Reorder the terms:
1 + 10r = 9 + 9r + -7r

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

Solving
1 + 10r = 9 + 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 + 10r + -2r = 9 + 2r + -2r

Combine like terms: 10r + -2r = 8r
1 + 8r = 9 + 2r + -2r

Combine like terms: 2r + -2r = 0
1 + 8r = 9 + 0
1 + 8r = 9

Add '-1' to each side of the equation.
1 + -1 + 8r = 9 + -1

Combine like terms: 1 + -1 = 0
0 + 8r = 9 + -1
8r = 9 + -1

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

Divide each side by '8'.
r = 1

Simplifying
r = 1

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