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

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


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

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

Solving
8 + -8r = -42 + 42r

Solving for variable 'r'.

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

Add '-42r' to each side of the equation.
8 + -8r + -42r = -42 + 42r + -42r

Combine like terms: -8r + -42r = -50r
8 + -50r = -42 + 42r + -42r

Combine like terms: 42r + -42r = 0
8 + -50r = -42 + 0
8 + -50r = -42

Add '-8' to each side of the equation.
8 + -8 + -50r = -42 + -8

Combine like terms: 8 + -8 = 0
0 + -50r = -42 + -8
-50r = -42 + -8

Combine like terms: -42 + -8 = -50
-50r = -50

Divide each side by '-50'.
r = 1

Simplifying
r = 1

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