r+2(r-7)=1

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Solution for r+2(r-7)=1 equation: 


Simplifying
r + 2(r + -7) = 1

Reorder the terms:
r + 2(-7 + r) = 1
r + (-7 * 2 + r * 2) = 1
r + (-14 + 2r) = 1

Reorder the terms:
-14 + r + 2r = 1

Combine like terms: r + 2r = 3r
-14 + 3r = 1

Solving
-14 + 3r = 1

Solving for variable 'r'.

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

Add '14' to each side of the equation.
-14 + 14 + 3r = 1 + 14

Combine like terms: -14 + 14 = 0
0 + 3r = 1 + 14
3r = 1 + 14

Combine like terms: 1 + 14 = 15
3r = 15

Divide each side by '3'.
r = 5

Simplifying
r = 5

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