3x-7-7(-x)=27

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Solution for 3x-7-7(-x)=27 equation:


Simplifying
3x + -7 + -7(-1x) = 27

Remove parenthesis around (-1x)
3x + -7 + -7 * -1x = 27

Multiply -7 * -1
3x + -7 + 7x = 27

Reorder the terms:
-7 + 3x + 7x = 27

Combine like terms: 3x + 7x = 10x
-7 + 10x = 27

Solving
-7 + 10x = 27

Solving for variable 'x'.

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

Add '7' to each side of the equation.
-7 + 7 + 10x = 27 + 7

Combine like terms: -7 + 7 = 0
0 + 10x = 27 + 7
10x = 27 + 7

Combine like terms: 27 + 7 = 34
10x = 34

Divide each side by '10'.
x = 3.4

Simplifying
x = 3.4

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