7(7+6x-1)=9(9+x+3)

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Solution for 7(7+6x-1)=9(9+x+3) equation:


Simplifying
7(7 + 6x + -1) = 9(9 + x + 3)

Reorder the terms:
7(7 + -1 + 6x) = 9(9 + x + 3)

Combine like terms: 7 + -1 = 6
7(6 + 6x) = 9(9 + x + 3)
(6 * 7 + 6x * 7) = 9(9 + x + 3)
(42 + 42x) = 9(9 + x + 3)

Reorder the terms:
42 + 42x = 9(9 + 3 + x)

Combine like terms: 9 + 3 = 12
42 + 42x = 9(12 + x)
42 + 42x = (12 * 9 + x * 9)
42 + 42x = (108 + 9x)

Solving
42 + 42x = 108 + 9x

Solving for variable 'x'.

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

Add '-9x' to each side of the equation.
42 + 42x + -9x = 108 + 9x + -9x

Combine like terms: 42x + -9x = 33x
42 + 33x = 108 + 9x + -9x

Combine like terms: 9x + -9x = 0
42 + 33x = 108 + 0
42 + 33x = 108

Add '-42' to each side of the equation.
42 + -42 + 33x = 108 + -42

Combine like terms: 42 + -42 = 0
0 + 33x = 108 + -42
33x = 108 + -42

Combine like terms: 108 + -42 = 66
33x = 66

Divide each side by '33'.
x = 2

Simplifying
x = 2

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