6(3x+7)=28-(3x+7)

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Solution for 6(3x+7)=28-(3x+7) equation:


Simplifying
6(3x + 7) = 28 + -1(3x + 7)

Reorder the terms:
6(7 + 3x) = 28 + -1(3x + 7)
(7 * 6 + 3x * 6) = 28 + -1(3x + 7)
(42 + 18x) = 28 + -1(3x + 7)

Reorder the terms:
42 + 18x = 28 + -1(7 + 3x)
42 + 18x = 28 + (7 * -1 + 3x * -1)
42 + 18x = 28 + (-7 + -3x)

Combine like terms: 28 + -7 = 21
42 + 18x = 21 + -3x

Solving
42 + 18x = 21 + -3x

Solving for variable 'x'.

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

Add '3x' to each side of the equation.
42 + 18x + 3x = 21 + -3x + 3x

Combine like terms: 18x + 3x = 21x
42 + 21x = 21 + -3x + 3x

Combine like terms: -3x + 3x = 0
42 + 21x = 21 + 0
42 + 21x = 21

Add '-42' to each side of the equation.
42 + -42 + 21x = 21 + -42

Combine like terms: 42 + -42 = 0
0 + 21x = 21 + -42
21x = 21 + -42

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

Divide each side by '21'.
x = -1

Simplifying
x = -1

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