7=3(1+2x)+6x

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Solution for 7=3(1+2x)+6x equation: 


Simplifying
7 = 3(1 + 2x) + 6x
7 = (1 * 3 + 2x * 3) + 6x
7 = (3 + 6x) + 6x

Combine like terms: 6x + 6x = 12x
7 = 3 + 12x

Solving
7 = 3 + 12x

Solving for variable 'x'.

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

Add '-12x' to each side of the equation.
7 + -12x = 3 + 12x + -12x

Combine like terms: 12x + -12x = 0
7 + -12x = 3 + 0
7 + -12x = 3

Add '-7' to each side of the equation.
7 + -7 + -12x = 3 + -7

Combine like terms: 7 + -7 = 0
0 + -12x = 3 + -7
-12x = 3 + -7

Combine like terms: 3 + -7 = -4
-12x = -4

Divide each side by '-12'.
x = 0.3333333333

Simplifying
x = 0.3333333333

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