(x-5)-(x+4)=7x

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Solution for (x-5)-(x+4)=7x equation:


Simplifying
(x + -5) + -1(x + 4) = 7x

Reorder the terms:
(-5 + x) + -1(x + 4) = 7x

Remove parenthesis around (-5 + x)
-5 + x + -1(x + 4) = 7x

Reorder the terms:
-5 + x + -1(4 + x) = 7x
-5 + x + (4 * -1 + x * -1) = 7x
-5 + x + (-4 + -1x) = 7x

Reorder the terms:
-5 + -4 + x + -1x = 7x

Combine like terms: -5 + -4 = -9
-9 + x + -1x = 7x

Combine like terms: x + -1x = 0
-9 + 0 = 7x
-9 = 7x

Solving
-9 = 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 + -7x = 7x + -7x

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

Add '9' to each side of the equation.
-9 + 9 + -7x = 0 + 9

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

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

Divide each side by '-7'.
x = -1.285714286

Simplifying
x = -1.285714286

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