7x+2(x+9)=-9

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


Simplifying
7x + 2(x + 9) = -9

Reorder the terms:
7x + 2(9 + x) = -9
7x + (9 * 2 + x * 2) = -9
7x + (18 + 2x) = -9

Reorder the terms:
18 + 7x + 2x = -9

Combine like terms: 7x + 2x = 9x
18 + 9x = -9

Solving
18 + 9x = -9

Solving for variable 'x'.

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

Add '-18' to each side of the equation.
18 + -18 + 9x = -9 + -18

Combine like terms: 18 + -18 = 0
0 + 9x = -9 + -18
9x = -9 + -18

Combine like terms: -9 + -18 = -27
9x = -27

Divide each side by '9'.
x = -3

Simplifying
x = -3

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