R-7+8=7

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Solution for R-7+8=7 equation: 


Simplifying
R + -7 + 8 = 7

Reorder the terms:
-7 + 8 + R = 7

Combine like terms: -7 + 8 = 1
1 + R = 7

Solving
1 + R = 7

Solving for variable 'R'.

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

Add '-1' to each side of the equation.
1 + -1 + R = 7 + -1

Combine like terms: 1 + -1 = 0
0 + R = 7 + -1
R = 7 + -1

Combine like terms: 7 + -1 = 6
R = 6

Simplifying
R = 6

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