7=-12r-(-1)

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Solution for 7=-12r-(-1) equation:


Simplifying
7 = -12r + -1(-1)

Multiply -1 * -1
7 = -12r + 1

Reorder the terms:
7 = 1 + -12r

Solving
7 = 1 + -12r

Solving for variable 'r'.

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

Add '12r' to each side of the equation.
7 + 12r = 1 + -12r + 12r

Combine like terms: -12r + 12r = 0
7 + 12r = 1 + 0
7 + 12r = 1

Add '-7' to each side of the equation.
7 + -7 + 12r = 1 + -7

Combine like terms: 7 + -7 = 0
0 + 12r = 1 + -7
12r = 1 + -7

Combine like terms: 1 + -7 = -6
12r = -6

Divide each side by '12'.
r = -0.5

Simplifying
r = -0.5

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