-[4x+(9x+7)]=9-(7x+1)

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Solution for -[4x+(9x+7)]=9-(7x+1) equation:


Simplifying
-1[4x + (9x + 7)] = 9 + -1(7x + 1)

Reorder the terms:
-1[4x + (7 + 9x)] = 9 + -1(7x + 1)

Remove parenthesis around (7 + 9x)
-1[4x + 7 + 9x] = 9 + -1(7x + 1)

Reorder the terms:
-1[7 + 4x + 9x] = 9 + -1(7x + 1)

Combine like terms: 4x + 9x = 13x
-1[7 + 13x] = 9 + -1(7x + 1)
[7 * -1 + 13x * -1] = 9 + -1(7x + 1)
[-7 + -13x] = 9 + -1(7x + 1)

Reorder the terms:
-7 + -13x = 9 + -1(1 + 7x)
-7 + -13x = 9 + (1 * -1 + 7x * -1)
-7 + -13x = 9 + (-1 + -7x)

Combine like terms: 9 + -1 = 8
-7 + -13x = 8 + -7x

Solving
-7 + -13x = 8 + -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.
-7 + -13x + 7x = 8 + -7x + 7x

Combine like terms: -13x + 7x = -6x
-7 + -6x = 8 + -7x + 7x

Combine like terms: -7x + 7x = 0
-7 + -6x = 8 + 0
-7 + -6x = 8

Add '7' to each side of the equation.
-7 + 7 + -6x = 8 + 7

Combine like terms: -7 + 7 = 0
0 + -6x = 8 + 7
-6x = 8 + 7

Combine like terms: 8 + 7 = 15
-6x = 15

Divide each side by '-6'.
x = -2.5

Simplifying
x = -2.5

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