-7=r-2+1

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


Simplifying
-7 = r + -2 + 1

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

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

Solving
-7 = -1 + r

Solving for variable 'r'.

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

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

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

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

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

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

Divide each side by '-1'.
r = -6

Simplifying
r = -6

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