2x+7(6+x)=15

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Solution for 2x+7(6+x)=15 equation:


Simplifying
2x + 7(6 + x) = 15
2x + (6 * 7 + x * 7) = 15
2x + (42 + 7x) = 15

Reorder the terms:
42 + 2x + 7x = 15

Combine like terms: 2x + 7x = 9x
42 + 9x = 15

Solving
42 + 9x = 15

Solving for variable 'x'.

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

Add '-42' to each side of the equation.
42 + -42 + 9x = 15 + -42

Combine like terms: 42 + -42 = 0
0 + 9x = 15 + -42
9x = 15 + -42

Combine like terms: 15 + -42 = -27
9x = -27

Divide each side by '9'.
x = -3

Simplifying
x = -3

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