3(4)+3(2+7)=(x)x(4+9)

Solution for 3(4)+3(2+7)=(x)x(4+9) equation:

Simplifying
3(4) + 3(2 + 7) = (x) * x(4 + 9)

Multiply 3 * 4
12 + 3(2 + 7) = (x) * x(4 + 9)

Combine like terms: 2 + 7 = 9
12 + 3(9) = (x) * x(4 + 9)

Multiply 3 * 9
12 + 27 = (x) * x(4 + 9)

Combine like terms: 12 + 27 = 39
39 = (x) * x(4 + 9)

Combine like terms: 4 + 9 = 13
39 = x * x(13)

Reorder the terms for easier multiplication:
39 = 13x * x

Multiply x * x
39 = 13x2

Solving
39 = 13x2

Solving for variable 'x'.

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

Add '-13x2' to each side of the equation.
39 + -13x2 = 13x2 + -13x2

Combine like terms: 13x2 + -13x2 = 0
39 + -13x2 = 0

Add '-39' to each side of the equation.
39 + -39 + -13x2 = 0 + -39

Combine like terms: 39 + -39 = 0
0 + -13x2 = 0 + -39
-13x2 = 0 + -39

Combine like terms: 0 + -39 = -39
-13x2 = -39

Divide each side by '-13'.
x2 = 3

Simplifying
x2 = 3

Take the square root of each side:
x = {-1.732050808, 1.732050808}