3+4[5+4(3)]=x

Solution for 3+4[5+4(3)]=x equation:

Simplifying
3 + 4[5 + 4(3)] = x

Multiply 4 * 3
3 + 4[5 + 12] = x

Combine like terms: 5 + 12 = 17
3 + 4[17] = x

Multiply 4 * 17
3 + 68 = x

Combine like terms: 3 + 68 = 71
71 = x

Solving
71 = 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.
71 + -1x = x + -1x

Combine like terms: x + -1x = 0
71 + -1x = 0

Add '-71' to each side of the equation.
71 + -71 + -1x = 0 + -71

Combine like terms: 71 + -71 = 0
0 + -1x = 0 + -71
-1x = 0 + -71

Combine like terms: 0 + -71 = -71
-1x = -71

Divide each side by '-1'.
x = 71

Simplifying
x = 71