4+r+2=7

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Solution for 4+r+2=7 equation: 


Simplifying
4 + r + 2 = 7

Reorder the terms:
4 + 2 + r = 7

Combine like terms: 4 + 2 = 6
6 + r = 7

Solving
6 + r = 7

Solving for variable 'r'.

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

Add '-6' to each side of the equation.
6 + -6 + r = 7 + -6

Combine like terms: 6 + -6 = 0
0 + r = 7 + -6
r = 7 + -6

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

Simplifying
r = 1

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