-2x+7(3x-1)=31

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Solution for -2x+7(3x-1)=31 equation:


Simplifying
-2x + 7(3x + -1) = 31

Reorder the terms:
-2x + 7(-1 + 3x) = 31
-2x + (-1 * 7 + 3x * 7) = 31
-2x + (-7 + 21x) = 31

Reorder the terms:
-7 + -2x + 21x = 31

Combine like terms: -2x + 21x = 19x
-7 + 19x = 31

Solving
-7 + 19x = 31

Solving for variable 'x'.

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

Add '7' to each side of the equation.
-7 + 7 + 19x = 31 + 7

Combine like terms: -7 + 7 = 0
0 + 19x = 31 + 7
19x = 31 + 7

Combine like terms: 31 + 7 = 38
19x = 38

Divide each side by '19'.
x = 2

Simplifying
x = 2

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