7x-31=4x+5

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Solution for 7x-31=4x+5 equation:


Simplifying
7x + -31 = 4x + 5

Reorder the terms:
-31 + 7x = 4x + 5

Reorder the terms:
-31 + 7x = 5 + 4x

Solving
-31 + 7x = 5 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
-31 + 7x + -4x = 5 + 4x + -4x

Combine like terms: 7x + -4x = 3x
-31 + 3x = 5 + 4x + -4x

Combine like terms: 4x + -4x = 0
-31 + 3x = 5 + 0
-31 + 3x = 5

Add '31' to each side of the equation.
-31 + 31 + 3x = 5 + 31

Combine like terms: -31 + 31 = 0
0 + 3x = 5 + 31
3x = 5 + 31

Combine like terms: 5 + 31 = 36
3x = 36

Divide each side by '3'.
x = 12

Simplifying
x = 12

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