-2r+-7=1

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


Simplifying
-2r + -7 = 1

Reorder the terms:
-7 + -2r = 1

Solving
-7 + -2r = 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 + -2r = 1 + 7

Combine like terms: -7 + 7 = 0
0 + -2r = 1 + 7
-2r = 1 + 7

Combine like terms: 1 + 7 = 8
-2r = 8

Divide each side by '-2'.
r = -4

Simplifying
r = -4

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