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

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Solution for 7(x+3)-9(x+1)= equation:


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

Reorder the terms:
7(3 + x) + -9(x + 1) = 0
(3 * 7 + x * 7) + -9(x + 1) = 0
(21 + 7x) + -9(x + 1) = 0

Reorder the terms:
21 + 7x + -9(1 + x) = 0
21 + 7x + (1 * -9 + x * -9) = 0
21 + 7x + (-9 + -9x) = 0

Reorder the terms:
21 + -9 + 7x + -9x = 0

Combine like terms: 21 + -9 = 12
12 + 7x + -9x = 0

Combine like terms: 7x + -9x = -2x
12 + -2x = 0

Solving
12 + -2x = 0

Solving for variable 'x'.

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

Add '-12' to each side of the equation.
12 + -12 + -2x = 0 + -12

Combine like terms: 12 + -12 = 0
0 + -2x = 0 + -12
-2x = 0 + -12

Combine like terms: 0 + -12 = -12
-2x = -12

Divide each side by '-2'.
x = 6

Simplifying
x = 6

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