2x+2(2x+15)=78

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Solution for 2x+2(2x+15)=78 equation:


Simplifying
2x + 2(2x + 15) = 78

Reorder the terms:
2x + 2(15 + 2x) = 78
2x + (15 * 2 + 2x * 2) = 78
2x + (30 + 4x) = 78

Reorder the terms:
30 + 2x + 4x = 78

Combine like terms: 2x + 4x = 6x
30 + 6x = 78

Solving
30 + 6x = 78

Solving for variable 'x'.

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

Add '-30' to each side of the equation.
30 + -30 + 6x = 78 + -30

Combine like terms: 30 + -30 = 0
0 + 6x = 78 + -30
6x = 78 + -30

Combine like terms: 78 + -30 = 48
6x = 48

Divide each side by '6'.
x = 8

Simplifying
x = 8

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