-8-7(r-6)=90

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Solution for -8-7(r-6)=90 equation:


Simplifying
-8 + -7(r + -6) = 90

Reorder the terms:
-8 + -7(-6 + r) = 90
-8 + (-6 * -7 + r * -7) = 90
-8 + (42 + -7r) = 90

Combine like terms: -8 + 42 = 34
34 + -7r = 90

Solving
34 + -7r = 90

Solving for variable 'r'.

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

Add '-34' to each side of the equation.
34 + -34 + -7r = 90 + -34

Combine like terms: 34 + -34 = 0
0 + -7r = 90 + -34
-7r = 90 + -34

Combine like terms: 90 + -34 = 56
-7r = 56

Divide each side by '-7'.
r = -8

Simplifying
r = -8

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