9x-(3x+6)=7x-42

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Solution for 9x-(3x+6)=7x-42 equation:


Simplifying
9x + -1(3x + 6) = 7x + -42

Reorder the terms:
9x + -1(6 + 3x) = 7x + -42
9x + (6 * -1 + 3x * -1) = 7x + -42
9x + (-6 + -3x) = 7x + -42

Reorder the terms:
-6 + 9x + -3x = 7x + -42

Combine like terms: 9x + -3x = 6x
-6 + 6x = 7x + -42

Reorder the terms:
-6 + 6x = -42 + 7x

Solving
-6 + 6x = -42 + 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.
-6 + 6x + -7x = -42 + 7x + -7x

Combine like terms: 6x + -7x = -1x
-6 + -1x = -42 + 7x + -7x

Combine like terms: 7x + -7x = 0
-6 + -1x = -42 + 0
-6 + -1x = -42

Add '6' to each side of the equation.
-6 + 6 + -1x = -42 + 6

Combine like terms: -6 + 6 = 0
0 + -1x = -42 + 6
-1x = -42 + 6

Combine like terms: -42 + 6 = -36
-1x = -36

Divide each side by '-1'.
x = 36

Simplifying
x = 36

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