13-7=81-35x

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Solution for 13-7=81-35x equation:


Simplifying
13 + -7 = 81 + -35x

Combine like terms: 13 + -7 = 6
6 = 81 + -35x

Solving
6 = 81 + -35x

Solving for variable 'x'.

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

Add '35x' to each side of the equation.
6 + 35x = 81 + -35x + 35x

Combine like terms: -35x + 35x = 0
6 + 35x = 81 + 0
6 + 35x = 81

Add '-6' to each side of the equation.
6 + -6 + 35x = 81 + -6

Combine like terms: 6 + -6 = 0
0 + 35x = 81 + -6
35x = 81 + -6

Combine like terms: 81 + -6 = 75
35x = 75

Divide each side by '35'.
x = 2.142857143

Simplifying
x = 2.142857143

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