-r-1=14+1-4r+7r

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Solution for -r-1=14+1-4r+7r equation:


Simplifying
-1r + -1 = 14 + 1 + -4r + 7r

Reorder the terms:
-1 + -1r = 14 + 1 + -4r + 7r

Combine like terms: 14 + 1 = 15
-1 + -1r = 15 + -4r + 7r

Combine like terms: -4r + 7r = 3r
-1 + -1r = 15 + 3r

Solving
-1 + -1r = 15 + 3r

Solving for variable 'r'.

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

Add '-3r' to each side of the equation.
-1 + -1r + -3r = 15 + 3r + -3r

Combine like terms: -1r + -3r = -4r
-1 + -4r = 15 + 3r + -3r

Combine like terms: 3r + -3r = 0
-1 + -4r = 15 + 0
-1 + -4r = 15

Add '1' to each side of the equation.
-1 + 1 + -4r = 15 + 1

Combine like terms: -1 + 1 = 0
0 + -4r = 15 + 1
-4r = 15 + 1

Combine like terms: 15 + 1 = 16
-4r = 16

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

Simplifying
r = -4

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