1+3r+7r=11

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Solution for 1+3r+7r=11 equation: 


Simplifying
1 + 3r + 7r = 11

Combine like terms: 3r + 7r = 10r
1 + 10r = 11

Solving
1 + 10r = 11

Solving for variable 'r'.

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

Add '-1' to each side of the equation.
1 + -1 + 10r = 11 + -1

Combine like terms: 1 + -1 = 0
0 + 10r = 11 + -1
10r = 11 + -1

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

Divide each side by '10'.
r = 1

Simplifying
r = 1

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