r-7+3r=1

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


Simplifying
r + -7 + 3r = 1

Reorder the terms:
-7 + r + 3r = 1

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

Solving
-7 + 4r = 1

Solving for variable 'r'.

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

Add '7' to each side of the equation.
-7 + 7 + 4r = 1 + 7

Combine like terms: -7 + 7 = 0
0 + 4r = 1 + 7
4r = 1 + 7

Combine like terms: 1 + 7 = 8
4r = 8

Divide each side by '4'.
r = 2

Simplifying
r = 2

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