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

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


Simplifying
0 = (9x + 7) + -1(x + 3)

Reorder the terms:
0 = (7 + 9x) + -1(x + 3)

Remove parenthesis around (7 + 9x)
0 = 7 + 9x + -1(x + 3)

Reorder the terms:
0 = 7 + 9x + -1(3 + x)
0 = 7 + 9x + (3 * -1 + x * -1)
0 = 7 + 9x + (-3 + -1x)

Reorder the terms:
0 = 7 + -3 + 9x + -1x

Combine like terms: 7 + -3 = 4
0 = 4 + 9x + -1x

Combine like terms: 9x + -1x = 8x
0 = 4 + 8x

Solving
0 = 4 + 8x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-8x' to each side of the equation.
0 + -8x = 4 + 8x + -8x
Remove the zero:
-8x = 4 + 8x + -8x

Combine like terms: 8x + -8x = 0
-8x = 4 + 0
-8x = 4

Divide each side by '-8'.
x = -0.5

Simplifying
x = -0.5

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