3-(6x-18)=7(x-3)

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Solution for 3-(6x-18)=7(x-3) equation:


Simplifying
3 + -1(6x + -18) = 7(x + -3)

Reorder the terms:
3 + -1(-18 + 6x) = 7(x + -3)
3 + (-18 * -1 + 6x * -1) = 7(x + -3)
3 + (18 + -6x) = 7(x + -3)

Combine like terms: 3 + 18 = 21
21 + -6x = 7(x + -3)

Reorder the terms:
21 + -6x = 7(-3 + x)
21 + -6x = (-3 * 7 + x * 7)
21 + -6x = (-21 + 7x)

Solving
21 + -6x = -21 + 7x

Solving for variable 'x'.

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

Add '-7x' to each side of the equation.
21 + -6x + -7x = -21 + 7x + -7x

Combine like terms: -6x + -7x = -13x
21 + -13x = -21 + 7x + -7x

Combine like terms: 7x + -7x = 0
21 + -13x = -21 + 0
21 + -13x = -21

Add '-21' to each side of the equation.
21 + -21 + -13x = -21 + -21

Combine like terms: 21 + -21 = 0
0 + -13x = -21 + -21
-13x = -21 + -21

Combine like terms: -21 + -21 = -42
-13x = -42

Divide each side by '-13'.
x = 3.230769231

Simplifying
x = 3.230769231

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