3(x+4)+6(11-x)=18

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Solution for 3(x+4)+6(11-x)=18 equation:


Simplifying
3(x + 4) + 6(11 + -1x) = 18

Reorder the terms:
3(4 + x) + 6(11 + -1x) = 18
(4 * 3 + x * 3) + 6(11 + -1x) = 18
(12 + 3x) + 6(11 + -1x) = 18
12 + 3x + (11 * 6 + -1x * 6) = 18
12 + 3x + (66 + -6x) = 18

Reorder the terms:
12 + 66 + 3x + -6x = 18

Combine like terms: 12 + 66 = 78
78 + 3x + -6x = 18

Combine like terms: 3x + -6x = -3x
78 + -3x = 18

Solving
78 + -3x = 18

Solving for variable 'x'.

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

Add '-78' to each side of the equation.
78 + -78 + -3x = 18 + -78

Combine like terms: 78 + -78 = 0
0 + -3x = 18 + -78
-3x = 18 + -78

Combine like terms: 18 + -78 = -60
-3x = -60

Divide each side by '-3'.
x = 20

Simplifying
x = 20

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