4-(2x+8)=31-7x

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Solution for 4-(2x+8)=31-7x equation:


Simplifying
4 + -1(2x + 8) = 31 + -7x

Reorder the terms:
4 + -1(8 + 2x) = 31 + -7x
4 + (8 * -1 + 2x * -1) = 31 + -7x
4 + (-8 + -2x) = 31 + -7x

Combine like terms: 4 + -8 = -4
-4 + -2x = 31 + -7x

Solving
-4 + -2x = 31 + -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.
-4 + -2x + 7x = 31 + -7x + 7x

Combine like terms: -2x + 7x = 5x
-4 + 5x = 31 + -7x + 7x

Combine like terms: -7x + 7x = 0
-4 + 5x = 31 + 0
-4 + 5x = 31

Add '4' to each side of the equation.
-4 + 4 + 5x = 31 + 4

Combine like terms: -4 + 4 = 0
0 + 5x = 31 + 4
5x = 31 + 4

Combine like terms: 31 + 4 = 35
5x = 35

Divide each side by '5'.
x = 7

Simplifying
x = 7

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