8x-(3x+4)=31

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Solution for 8x-(3x+4)=31 equation:


Simplifying
8x + -1(3x + 4) = 31

Reorder the terms:
8x + -1(4 + 3x) = 31
8x + (4 * -1 + 3x * -1) = 31
8x + (-4 + -3x) = 31

Reorder the terms:
-4 + 8x + -3x = 31

Combine like terms: 8x + -3x = 5x
-4 + 5x = 31

Solving
-4 + 5x = 31

Solving for variable 'x'.

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

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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