7+5=6r+8-5r

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Solution for 7+5=6r+8-5r equation:


Simplifying
7 + 5 = 6r + 8 + -5r

Combine like terms: 7 + 5 = 12
12 = 6r + 8 + -5r

Reorder the terms:
12 = 8 + 6r + -5r

Combine like terms: 6r + -5r = 1r
12 = 8 + 1r

Solving
12 = 8 + 1r

Solving for variable 'r'.

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

Add '-1r' to each side of the equation.
12 + -1r = 8 + 1r + -1r

Combine like terms: 1r + -1r = 0
12 + -1r = 8 + 0
12 + -1r = 8

Add '-12' to each side of the equation.
12 + -12 + -1r = 8 + -12

Combine like terms: 12 + -12 = 0
0 + -1r = 8 + -12
-1r = 8 + -12

Combine like terms: 8 + -12 = -4
-1r = -4

Divide each side by '-1'.
r = 4

Simplifying
r = 4

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