7(x+1)+2x-1=15

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Solution for 7(x+1)+2x-1=15 equation:


Simplifying
7(x + 1) + 2x + -1 = 15

Reorder the terms:
7(1 + x) + 2x + -1 = 15
(1 * 7 + x * 7) + 2x + -1 = 15
(7 + 7x) + 2x + -1 = 15

Reorder the terms:
7 + -1 + 7x + 2x = 15

Combine like terms: 7 + -1 = 6
6 + 7x + 2x = 15

Combine like terms: 7x + 2x = 9x
6 + 9x = 15

Solving
6 + 9x = 15

Solving for variable 'x'.

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

Add '-6' to each side of the equation.
6 + -6 + 9x = 15 + -6

Combine like terms: 6 + -6 = 0
0 + 9x = 15 + -6
9x = 15 + -6

Combine like terms: 15 + -6 = 9
9x = 9

Divide each side by '9'.
x = 1

Simplifying
x = 1

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