-1+3(6-(-1))=x

Solution for -1+3(6-(-1))=x equation:

Simplifying
-1 + 3(6 + -1(-1)) = x

Multiply -1 * -1
-1 + 3(6 + 1) = x

Combine like terms: 6 + 1 = 7
-1 + 3(7) = x

Multiply 3 * 7
-1 + 21 = x

Combine like terms: -1 + 21 = 20
20 = x

Solving
20 = x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
20 + -1x = x + -1x

Combine like terms: x + -1x = 0
20 + -1x = 0

Add '-20' to each side of the equation.
20 + -20 + -1x = 0 + -20

Combine like terms: 20 + -20 = 0
0 + -1x = 0 + -20
-1x = 0 + -20

Combine like terms: 0 + -20 = -20
-1x = -20

Divide each side by '-1'.
x = 20

Simplifying
x = 20