8x-(7x+9)=7x-15

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Solution for 8x-(7x+9)=7x-15 equation:


Simplifying
8x + -1(7x + 9) = 7x + -15

Reorder the terms:
8x + -1(9 + 7x) = 7x + -15
8x + (9 * -1 + 7x * -1) = 7x + -15
8x + (-9 + -7x) = 7x + -15

Reorder the terms:
-9 + 8x + -7x = 7x + -15

Combine like terms: 8x + -7x = 1x
-9 + 1x = 7x + -15

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

Solving
-9 + 1x = -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 + 1x + -7x = -15 + 7x + -7x

Combine like terms: 1x + -7x = -6x
-9 + -6x = -15 + 7x + -7x

Combine like terms: 7x + -7x = 0
-9 + -6x = -15 + 0
-9 + -6x = -15

Add '9' to each side of the equation.
-9 + 9 + -6x = -15 + 9

Combine like terms: -9 + 9 = 0
0 + -6x = -15 + 9
-6x = -15 + 9

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

Divide each side by '-6'.
x = 1

Simplifying
x = 1

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