7x+r=3x+16

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Solution for 7x+r=3x+16 equation: 


Simplifying
7x + r = 3x + 16

Reorder the terms:
r + 7x = 3x + 16

Reorder the terms:
r + 7x = 16 + 3x

Solving
r + 7x = 16 + 3x

Solving for variable 'r'.

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

Add '-7x' to each side of the equation.
r + 7x + -7x = 16 + 3x + -7x

Combine like terms: 7x + -7x = 0
r + 0 = 16 + 3x + -7x
r = 16 + 3x + -7x

Combine like terms: 3x + -7x = -4x
r = 16 + -4x

Simplifying
r = 16 + -4x

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