15-2(x-3)=31

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Solution for 15-2(x-3)=31 equation:


Simplifying
15 + -2(x + -3) = 31

Reorder the terms:
15 + -2(-3 + x) = 31
15 + (-3 * -2 + x * -2) = 31
15 + (6 + -2x) = 31

Combine like terms: 15 + 6 = 21
21 + -2x = 31

Solving
21 + -2x = 31

Solving for variable 'x'.

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

Add '-21' to each side of the equation.
21 + -21 + -2x = 31 + -21

Combine like terms: 21 + -21 = 0
0 + -2x = 31 + -21
-2x = 31 + -21

Combine like terms: 31 + -21 = 10
-2x = 10

Divide each side by '-2'.
x = -5

Simplifying
x = -5

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