7(5x+9)+(x+9)=18

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Solution for 7(5x+9)+(x+9)=18 equation:


Simplifying
7(5x + 9) + (x + 9) = 18

Reorder the terms:
7(9 + 5x) + (x + 9) = 18
(9 * 7 + 5x * 7) + (x + 9) = 18
(63 + 35x) + (x + 9) = 18

Reorder the terms:
63 + 35x + (9 + x) = 18

Remove parenthesis around (9 + x)
63 + 35x + 9 + x = 18

Reorder the terms:
63 + 9 + 35x + x = 18

Combine like terms: 63 + 9 = 72
72 + 35x + x = 18

Combine like terms: 35x + x = 36x
72 + 36x = 18

Solving
72 + 36x = 18

Solving for variable 'x'.

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

Add '-72' to each side of the equation.
72 + -72 + 36x = 18 + -72

Combine like terms: 72 + -72 = 0
0 + 36x = 18 + -72
36x = 18 + -72

Combine like terms: 18 + -72 = -54
36x = -54

Divide each side by '36'.
x = -1.5

Simplifying
x = -1.5

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