7(3x+1)=21y

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Solution for 7(3x+1)=21y equation: 


Simplifying
7(3x + 1) = 21y

Reorder the terms:
7(1 + 3x) = 21y
(1 * 7 + 3x * 7) = 21y
(7 + 21x) = 21y

Solving
7 + 21x = 21y

Solving for variable 'x'.

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

Add '-7' to each side of the equation.
7 + -7 + 21x = -7 + 21y

Combine like terms: 7 + -7 = 0
0 + 21x = -7 + 21y
21x = -7 + 21y

Divide each side by '21'.
x = -0.3333333333 + y

Simplifying
x = -0.3333333333 + y

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