3-2(a-4)=31

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Solution for 3-2(a-4)=31 equation:


Simplifying
3 + -2(a + -4) = 31

Reorder the terms:
3 + -2(-4 + a) = 31
3 + (-4 * -2 + a * -2) = 31
3 + (8 + -2a) = 31

Combine like terms: 3 + 8 = 11
11 + -2a = 31

Solving
11 + -2a = 31

Solving for variable 'a'.

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

Add '-11' to each side of the equation.
11 + -11 + -2a = 31 + -11

Combine like terms: 11 + -11 = 0
0 + -2a = 31 + -11
-2a = 31 + -11

Combine like terms: 31 + -11 = 20
-2a = 20

Divide each side by '-2'.
a = -10

Simplifying
a = -10

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