1-9r-7=

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Solution for 1-9r-7= equation:


Simplifying
1 + -9r + -7 = 0

Reorder the terms:
1 + -7 + -9r = 0

Combine like terms: 1 + -7 = -6
-6 + -9r = 0

Solving
-6 + -9r = 0

Solving for variable 'r'.

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

Add '6' to each side of the equation.
-6 + 6 + -9r = 0 + 6

Combine like terms: -6 + 6 = 0
0 + -9r = 0 + 6
-9r = 0 + 6

Combine like terms: 0 + 6 = 6
-9r = 6

Divide each side by '-9'.
r = -0.6666666667

Simplifying
r = -0.6666666667

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