-286=-7(1+5r)+1

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Solution for -286=-7(1+5r)+1 equation:


Simplifying
-286 = -7(1 + 5r) + 1
-286 = (1 * -7 + 5r * -7) + 1
-286 = (-7 + -35r) + 1

Reorder the terms:
-286 = -7 + 1 + -35r

Combine like terms: -7 + 1 = -6
-286 = -6 + -35r

Solving
-286 = -6 + -35r

Solving for variable 'r'.

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

Add '35r' to each side of the equation.
-286 + 35r = -6 + -35r + 35r

Combine like terms: -35r + 35r = 0
-286 + 35r = -6 + 0
-286 + 35r = -6

Add '286' to each side of the equation.
-286 + 286 + 35r = -6 + 286

Combine like terms: -286 + 286 = 0
0 + 35r = -6 + 286
35r = -6 + 286

Combine like terms: -6 + 286 = 280
35r = 280

Divide each side by '35'.
r = 8

Simplifying
r = 8

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