-3(8+7r)+5=-187

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Solution for -3(8+7r)+5=-187 equation:


Simplifying
-3(8 + 7r) + 5 = -187
(8 * -3 + 7r * -3) + 5 = -187
(-24 + -21r) + 5 = -187

Reorder the terms:
-24 + 5 + -21r = -187

Combine like terms: -24 + 5 = -19
-19 + -21r = -187

Solving
-19 + -21r = -187

Solving for variable 'r'.

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

Add '19' to each side of the equation.
-19 + 19 + -21r = -187 + 19

Combine like terms: -19 + 19 = 0
0 + -21r = -187 + 19
-21r = -187 + 19

Combine like terms: -187 + 19 = -168
-21r = -168

Divide each side by '-21'.
r = 8

Simplifying
r = 8

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