3(x+7)=9-2(2x-2)

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Solution for 3(x+7)=9-2(2x-2) equation:


Simplifying
3(x + 7) = 9 + -2(2x + -2)

Reorder the terms:
3(7 + x) = 9 + -2(2x + -2)
(7 * 3 + x * 3) = 9 + -2(2x + -2)
(21 + 3x) = 9 + -2(2x + -2)

Reorder the terms:
21 + 3x = 9 + -2(-2 + 2x)
21 + 3x = 9 + (-2 * -2 + 2x * -2)
21 + 3x = 9 + (4 + -4x)

Combine like terms: 9 + 4 = 13
21 + 3x = 13 + -4x

Solving
21 + 3x = 13 + -4x

Solving for variable 'x'.

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

Add '4x' to each side of the equation.
21 + 3x + 4x = 13 + -4x + 4x

Combine like terms: 3x + 4x = 7x
21 + 7x = 13 + -4x + 4x

Combine like terms: -4x + 4x = 0
21 + 7x = 13 + 0
21 + 7x = 13

Add '-21' to each side of the equation.
21 + -21 + 7x = 13 + -21

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

Combine like terms: 13 + -21 = -8
7x = -8

Divide each side by '7'.
x = -1.142857143

Simplifying
x = -1.142857143

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