-7r-8(8r+6)=165

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Solution for -7r-8(8r+6)=165 equation:


Simplifying
-7r + -8(8r + 6) = 165

Reorder the terms:
-7r + -8(6 + 8r) = 165
-7r + (6 * -8 + 8r * -8) = 165
-7r + (-48 + -64r) = 165

Reorder the terms:
-48 + -7r + -64r = 165

Combine like terms: -7r + -64r = -71r
-48 + -71r = 165

Solving
-48 + -71r = 165

Solving for variable 'r'.

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

Add '48' to each side of the equation.
-48 + 48 + -71r = 165 + 48

Combine like terms: -48 + 48 = 0
0 + -71r = 165 + 48
-71r = 165 + 48

Combine like terms: 165 + 48 = 213
-71r = 213

Divide each side by '-71'.
r = -3

Simplifying
r = -3

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