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

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

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

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

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

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

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

Combine like terms: 3 + -9 = -6
-6 + 7x + -1x = 0

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

Solving
-6 + 6x = 0

Solving for variable 'x'.

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

Add '6' to each side of the equation.
-6 + 6 + 6x = 0 + 6

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

Combine like terms: 0 + 6 = 6
6x = 6

Divide each side by '6'.
x = 1

Simplifying
x = 1