31=3-7x

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Solution for 31=3-7x equation:


Simplifying
31 = 3 + -7x

Solving
31 = 3 + -7x

Solving for variable 'x'.

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

Add '7x' to each side of the equation.
31 + 7x = 3 + -7x + 7x

Combine like terms: -7x + 7x = 0
31 + 7x = 3 + 0
31 + 7x = 3

Add '-31' to each side of the equation.
31 + -31 + 7x = 3 + -31

Combine like terms: 31 + -31 = 0
0 + 7x = 3 + -31
7x = 3 + -31

Combine like terms: 3 + -31 = -28
7x = -28

Divide each side by '7'.
x = -4

Simplifying
x = -4

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