7(x+3)-(x+3)=y

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


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

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

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

Reorder the terms:
21 + -3 + 7x + -1x = y

Combine like terms: 21 + -3 = 18
18 + 7x + -1x = y

Combine like terms: 7x + -1x = 6x
18 + 6x = y

Solving
18 + 6x = y

Solving for variable 'x'.

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

Add '-18' to each side of the equation.
18 + -18 + 6x = -18 + y

Combine like terms: 18 + -18 = 0
0 + 6x = -18 + y
6x = -18 + y

Divide each side by '6'.
x = -3 + 0.1666666667y

Simplifying
x = -3 + 0.1666666667y

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