7x-9=3(2x-6)-(4x-7)

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Solution for 7x-9=3(2x-6)-(4x-7) equation:


Simplifying
7x + -9 = 3(2x + -6) + -1(4x + -7)

Reorder the terms:
-9 + 7x = 3(2x + -6) + -1(4x + -7)

Reorder the terms:
-9 + 7x = 3(-6 + 2x) + -1(4x + -7)
-9 + 7x = (-6 * 3 + 2x * 3) + -1(4x + -7)
-9 + 7x = (-18 + 6x) + -1(4x + -7)

Reorder the terms:
-9 + 7x = -18 + 6x + -1(-7 + 4x)
-9 + 7x = -18 + 6x + (-7 * -1 + 4x * -1)
-9 + 7x = -18 + 6x + (7 + -4x)

Reorder the terms:
-9 + 7x = -18 + 7 + 6x + -4x

Combine like terms: -18 + 7 = -11
-9 + 7x = -11 + 6x + -4x

Combine like terms: 6x + -4x = 2x
-9 + 7x = -11 + 2x

Solving
-9 + 7x = -11 + 2x

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.
-9 + 7x + -2x = -11 + 2x + -2x

Combine like terms: 7x + -2x = 5x
-9 + 5x = -11 + 2x + -2x

Combine like terms: 2x + -2x = 0
-9 + 5x = -11 + 0
-9 + 5x = -11

Add '9' to each side of the equation.
-9 + 9 + 5x = -11 + 9

Combine like terms: -9 + 9 = 0
0 + 5x = -11 + 9
5x = -11 + 9

Combine like terms: -11 + 9 = -2
5x = -2

Divide each side by '5'.
x = -0.4

Simplifying
x = -0.4

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