7x-2(3+x)=9

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Solution for 7x-2(3+x)=9 equation:


Simplifying
7x + -2(3 + x) = 9
7x + (3 * -2 + x * -2) = 9
7x + (-6 + -2x) = 9

Reorder the terms:
-6 + 7x + -2x = 9

Combine like terms: 7x + -2x = 5x
-6 + 5x = 9

Solving
-6 + 5x = 9

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 + 5x = 9 + 6

Combine like terms: -6 + 6 = 0
0 + 5x = 9 + 6
5x = 9 + 6

Combine like terms: 9 + 6 = 15
5x = 15

Divide each side by '5'.
x = 3

Simplifying
x = 3

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