-6(1+8r)-7r=434

Solution for -6(1+8r)-7r=434 equation:

Simplifying
-6(1 + 8r) + -7r = 434
(1 * -6 + 8r * -6) + -7r = 434
(-6 + -48r) + -7r = 434

Combine like terms: -48r + -7r = -55r
-6 + -55r = 434

Solving
-6 + -55r = 434

Solving for variable 'r'.

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

Add '6' to each side of the equation.
-6 + 6 + -55r = 434 + 6

Combine like terms: -6 + 6 = 0
0 + -55r = 434 + 6
-55r = 434 + 6

Combine like terms: 434 + 6 = 440
-55r = 440

Divide each side by '-55'.
r = -8

Simplifying
r = -8