9[x-1]=7x-15

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Solution for 9[x-1]=7x-15 equation:


Simplifying
9[x + -1] = 7x + -15

Reorder the terms:
9[-1 + x] = 7x + -15
[-1 * 9 + x * 9] = 7x + -15
[-9 + 9x] = 7x + -15

Reorder the terms:
-9 + 9x = -15 + 7x

Solving
-9 + 9x = -15 + 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.
-9 + 9x + -7x = -15 + 7x + -7x

Combine like terms: 9x + -7x = 2x
-9 + 2x = -15 + 7x + -7x

Combine like terms: 7x + -7x = 0
-9 + 2x = -15 + 0
-9 + 2x = -15

Add '9' to each side of the equation.
-9 + 9 + 2x = -15 + 9

Combine like terms: -9 + 9 = 0
0 + 2x = -15 + 9
2x = -15 + 9

Combine like terms: -15 + 9 = -6
2x = -6

Divide each side by '2'.
x = -3

Simplifying
x = -3

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