3(x+2)-4=15

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Solution for 3(x+2)-4=15 equation: 


Simplifying
3(x + 2) + -4 = 15

Reorder the terms:
3(2 + x) + -4 = 15
(2 * 3 + x * 3) + -4 = 15
(6 + 3x) + -4 = 15

Reorder the terms:
6 + -4 + 3x = 15

Combine like terms: 6 + -4 = 2
2 + 3x = 15

Solving
2 + 3x = 15

Solving for variable 'x'.

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

Add '-2' to each side of the equation.
2 + -2 + 3x = 15 + -2

Combine like terms: 2 + -2 = 0
0 + 3x = 15 + -2
3x = 15 + -2

Combine like terms: 15 + -2 = 13
3x = 13

Divide each side by '3'.
x = 4.333333333

Simplifying
x = 4.333333333

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