3+7(1-x)=31

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Solution for 3+7(1-x)=31 equation:


Simplifying
3 + 7(1 + -1x) = 31
3 + (1 * 7 + -1x * 7) = 31
3 + (7 + -7x) = 31

Combine like terms: 3 + 7 = 10
10 + -7x = 31

Solving
10 + -7x = 31

Solving for variable 'x'.

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

Add '-10' to each side of the equation.
10 + -10 + -7x = 31 + -10

Combine like terms: 10 + -10 = 0
0 + -7x = 31 + -10
-7x = 31 + -10

Combine like terms: 31 + -10 = 21
-7x = 21

Divide each side by '-7'.
x = -3

Simplifying
x = -3

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