(12x+4)+(9x+6)=90

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Solution for (12x+4)+(9x+6)=90 equation:


Simplifying
(12x + 4) + (9x + 6) = 90

Reorder the terms:
(4 + 12x) + (9x + 6) = 90

Remove parenthesis around (4 + 12x)
4 + 12x + (9x + 6) = 90

Reorder the terms:
4 + 12x + (6 + 9x) = 90

Remove parenthesis around (6 + 9x)
4 + 12x + 6 + 9x = 90

Reorder the terms:
4 + 6 + 12x + 9x = 90

Combine like terms: 4 + 6 = 10
10 + 12x + 9x = 90

Combine like terms: 12x + 9x = 21x
10 + 21x = 90

Solving
10 + 21x = 90

Solving for variable 'x'.

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

Add '-10' to each side of the equation.
10 + -10 + 21x = 90 + -10

Combine like terms: 10 + -10 = 0
0 + 21x = 90 + -10
21x = 90 + -10

Combine like terms: 90 + -10 = 80
21x = 80

Divide each side by '21'.
x = 3.80952381

Simplifying
x = 3.80952381

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