-7-2(4r-6)=87

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Solution for -7-2(4r-6)=87 equation:


Simplifying
-7 + -2(4r + -6) = 87

Reorder the terms:
-7 + -2(-6 + 4r) = 87
-7 + (-6 * -2 + 4r * -2) = 87
-7 + (12 + -8r) = 87

Combine like terms: -7 + 12 = 5
5 + -8r = 87

Solving
5 + -8r = 87

Solving for variable 'r'.

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

Add '-5' to each side of the equation.
5 + -5 + -8r = 87 + -5

Combine like terms: 5 + -5 = 0
0 + -8r = 87 + -5
-8r = 87 + -5

Combine like terms: 87 + -5 = 82
-8r = 82

Divide each side by '-8'.
r = -10.25

Simplifying
r = -10.25

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