3r-13=1+r

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Solution for 3r-13=1+r equation:


Simplifying
3r + -13 = 1 + r

Reorder the terms:
-13 + 3r = 1 + r

Solving
-13 + 3r = 1 + r

Solving for variable 'r'.

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

Add '-1r' to each side of the equation.
-13 + 3r + -1r = 1 + r + -1r

Combine like terms: 3r + -1r = 2r
-13 + 2r = 1 + r + -1r

Combine like terms: r + -1r = 0
-13 + 2r = 1 + 0
-13 + 2r = 1

Add '13' to each side of the equation.
-13 + 13 + 2r = 1 + 13

Combine like terms: -13 + 13 = 0
0 + 2r = 1 + 13
2r = 1 + 13

Combine like terms: 1 + 13 = 14
2r = 14

Divide each side by '2'.
r = 7

Simplifying
r = 7

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