(6x+3)+(9x+12)+(4x-3)=90

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Solution for (6x+3)+(9x+12)+(4x-3)=90 equation:


Simplifying
(6x + 3) + (9x + 12) + (4x + -3) = 90

Reorder the terms:
(3 + 6x) + (9x + 12) + (4x + -3) = 90

Remove parenthesis around (3 + 6x)
3 + 6x + (9x + 12) + (4x + -3) = 90

Reorder the terms:
3 + 6x + (12 + 9x) + (4x + -3) = 90

Remove parenthesis around (12 + 9x)
3 + 6x + 12 + 9x + (4x + -3) = 90

Reorder the terms:
3 + 6x + 12 + 9x + (-3 + 4x) = 90

Remove parenthesis around (-3 + 4x)
3 + 6x + 12 + 9x + -3 + 4x = 90

Reorder the terms:
3 + 12 + -3 + 6x + 9x + 4x = 90

Combine like terms: 3 + 12 = 15
15 + -3 + 6x + 9x + 4x = 90

Combine like terms: 15 + -3 = 12
12 + 6x + 9x + 4x = 90

Combine like terms: 6x + 9x = 15x
12 + 15x + 4x = 90

Combine like terms: 15x + 4x = 19x
12 + 19x = 90

Solving
12 + 19x = 90

Solving for variable 'x'.

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

Add '-12' to each side of the equation.
12 + -12 + 19x = 90 + -12

Combine like terms: 12 + -12 = 0
0 + 19x = 90 + -12
19x = 90 + -12

Combine like terms: 90 + -12 = 78
19x = 78

Divide each side by '19'.
x = 4.105263158

Simplifying
x = 4.105263158

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