7(x+3)=12-y

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Solution for 7(x+3)=12-y equation:


Simplifying
7(x + 3) = 12 + -1y

Reorder the terms:
7(3 + x) = 12 + -1y
(3 * 7 + x * 7) = 12 + -1y
(21 + 7x) = 12 + -1y

Solving
21 + 7x = 12 + -1y

Solving for variable 'x'.

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

Add '-21' to each side of the equation.
21 + -21 + 7x = 12 + -21 + -1y

Combine like terms: 21 + -21 = 0
0 + 7x = 12 + -21 + -1y
7x = 12 + -21 + -1y

Combine like terms: 12 + -21 = -9
7x = -9 + -1y

Divide each side by '7'.
x = -1.285714286 + -0.1428571429y

Simplifying
x = -1.285714286 + -0.1428571429y

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