(8r-3)-(7r+1)=6

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Solution for (8r-3)-(7r+1)=6 equation:


Simplifying
(8r + -3) + -1(7r + 1) = 6

Reorder the terms:
(-3 + 8r) + -1(7r + 1) = 6

Remove parenthesis around (-3 + 8r)
-3 + 8r + -1(7r + 1) = 6

Reorder the terms:
-3 + 8r + -1(1 + 7r) = 6
-3 + 8r + (1 * -1 + 7r * -1) = 6
-3 + 8r + (-1 + -7r) = 6

Reorder the terms:
-3 + -1 + 8r + -7r = 6

Combine like terms: -3 + -1 = -4
-4 + 8r + -7r = 6

Combine like terms: 8r + -7r = 1r
-4 + 1r = 6

Solving
-4 + 1r = 6

Solving for variable 'r'.

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

Add '4' to each side of the equation.
-4 + 4 + 1r = 6 + 4

Combine like terms: -4 + 4 = 0
0 + 1r = 6 + 4
1r = 6 + 4

Combine like terms: 6 + 4 = 10
1r = 10

Divide each side by '1'.
r = 10

Simplifying
r = 10

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