-5=7+r

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Solution for -5=7+r equation:


Simplifying
-5 = 7 + r

Solving
-5 = 7 + 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.
-5 + -1r = 7 + r + -1r

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

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

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

Combine like terms: 7 + 5 = 12
-1r = 12

Divide each side by '-1'.
r = -12

Simplifying
r = -12

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