12(x+9)+5(x+3)=90

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Solution for 12(x+9)+5(x+3)=90 equation:


Simplifying
12(x + 9) + 5(x + 3) = 90

Reorder the terms:
12(9 + x) + 5(x + 3) = 90
(9 * 12 + x * 12) + 5(x + 3) = 90
(108 + 12x) + 5(x + 3) = 90

Reorder the terms:
108 + 12x + 5(3 + x) = 90
108 + 12x + (3 * 5 + x * 5) = 90
108 + 12x + (15 + 5x) = 90

Reorder the terms:
108 + 15 + 12x + 5x = 90

Combine like terms: 108 + 15 = 123
123 + 12x + 5x = 90

Combine like terms: 12x + 5x = 17x
123 + 17x = 90

Solving
123 + 17x = 90

Solving for variable 'x'.

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

Add '-123' to each side of the equation.
123 + -123 + 17x = 90 + -123

Combine like terms: 123 + -123 = 0
0 + 17x = 90 + -123
17x = 90 + -123

Combine like terms: 90 + -123 = -33
17x = -33

Divide each side by '17'.
x = -1.941176471

Simplifying
x = -1.941176471

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