1+r=7+3r-3r

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Solution for 1+r=7+3r-3r equation: 


Simplifying
1 + r = 7 + 3r + -3r

Combine like terms: 3r + -3r = 0
1 + r = 7 + 0
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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