7x-(x-1)=31

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Solution for 7x-(x-1)=31 equation:


Simplifying
7x + -1(x + -1) = 31

Reorder the terms:
7x + -1(-1 + x) = 31
7x + (-1 * -1 + x * -1) = 31
7x + (1 + -1x) = 31

Reorder the terms:
1 + 7x + -1x = 31

Combine like terms: 7x + -1x = 6x
1 + 6x = 31

Solving
1 + 6x = 31

Solving for variable 'x'.

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

Add '-1' to each side of the equation.
1 + -1 + 6x = 31 + -1

Combine like terms: 1 + -1 = 0
0 + 6x = 31 + -1
6x = 31 + -1

Combine like terms: 31 + -1 = 30
6x = 30

Divide each side by '6'.
x = 5

Simplifying
x = 5

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