-8(r-8)=1-7(r-10)

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Solution for -8(r-8)=1-7(r-10) equation:


Simplifying
-8(r + -8) = 1 + -7(r + -10)

Reorder the terms:
-8(-8 + r) = 1 + -7(r + -10)
(-8 * -8 + r * -8) = 1 + -7(r + -10)
(64 + -8r) = 1 + -7(r + -10)

Reorder the terms:
64 + -8r = 1 + -7(-10 + r)
64 + -8r = 1 + (-10 * -7 + r * -7)
64 + -8r = 1 + (70 + -7r)

Combine like terms: 1 + 70 = 71
64 + -8r = 71 + -7r

Solving
64 + -8r = 71 + -7r

Solving for variable 'r'.

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

Add '7r' to each side of the equation.
64 + -8r + 7r = 71 + -7r + 7r

Combine like terms: -8r + 7r = -1r
64 + -1r = 71 + -7r + 7r

Combine like terms: -7r + 7r = 0
64 + -1r = 71 + 0
64 + -1r = 71

Add '-64' to each side of the equation.
64 + -64 + -1r = 71 + -64

Combine like terms: 64 + -64 = 0
0 + -1r = 71 + -64
-1r = 71 + -64

Combine like terms: 71 + -64 = 7
-1r = 7

Divide each side by '-1'.
r = -7

Simplifying
r = -7

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