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

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


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

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

Combine like terms: 3x + 7x = 10x
-1 + 10x = -3(-9 + -1x)
-1 + 10x = (-9 * -3 + -1x * -3)
-1 + 10x = (27 + 3x)

Solving
-1 + 10x = 27 + 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.
-1 + 10x + -3x = 27 + 3x + -3x

Combine like terms: 10x + -3x = 7x
-1 + 7x = 27 + 3x + -3x

Combine like terms: 3x + -3x = 0
-1 + 7x = 27 + 0
-1 + 7x = 27

Add '1' to each side of the equation.
-1 + 1 + 7x = 27 + 1

Combine like terms: -1 + 1 = 0
0 + 7x = 27 + 1
7x = 27 + 1

Combine like terms: 27 + 1 = 28
7x = 28

Divide each side by '7'.
x = 4

Simplifying
x = 4

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