r-1=5r-7

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Solution for r-1=5r-7 equation:


Simplifying
r + -1 = 5r + -7

Reorder the terms:
-1 + r = 5r + -7

Reorder the terms:
-1 + r = -7 + 5r

Solving
-1 + r = -7 + 5r

Solving for variable 'r'.

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

Add '-5r' to each side of the equation.
-1 + r + -5r = -7 + 5r + -5r

Combine like terms: r + -5r = -4r
-1 + -4r = -7 + 5r + -5r

Combine like terms: 5r + -5r = 0
-1 + -4r = -7 + 0
-1 + -4r = -7

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

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

Combine like terms: -7 + 1 = -6
-4r = -6

Divide each side by '-4'.
r = 1.5

Simplifying
r = 1.5

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