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

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


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

Reorder the terms:
-1 + -7r = 8(7 + -8r)
-1 + -7r = (7 * 8 + -8r * 8)
-1 + -7r = (56 + -64r)

Solving
-1 + -7r = 56 + -64r

Solving for variable 'r'.

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

Add '64r' to each side of the equation.
-1 + -7r + 64r = 56 + -64r + 64r

Combine like terms: -7r + 64r = 57r
-1 + 57r = 56 + -64r + 64r

Combine like terms: -64r + 64r = 0
-1 + 57r = 56 + 0
-1 + 57r = 56

Add '1' to each side of the equation.
-1 + 1 + 57r = 56 + 1

Combine like terms: -1 + 1 = 0
0 + 57r = 56 + 1
57r = 56 + 1

Combine like terms: 56 + 1 = 57
57r = 57

Divide each side by '57'.
r = 1

Simplifying
r = 1

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