-1=7+3r

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Solution for -1=7+3r equation:


Simplifying
-1 = 7 + 3r

Solving
-1 = 7 + 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 + -3r = 7 + 3r + -3r

Combine like terms: 3r + -3r = 0
-1 + -3r = 7 + 0
-1 + -3r = 7

Add '1' to each side of the equation.
-1 + 1 + -3r = 7 + 1

Combine like terms: -1 + 1 = 0
0 + -3r = 7 + 1
-3r = 7 + 1

Combine like terms: 7 + 1 = 8
-3r = 8

Divide each side by '-3'.
r = -2.666666667

Simplifying
r = -2.666666667

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