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

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

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

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

Combine like terms: 4 + 7 = 11
12 + 3(11) = x(4 + 9)

Multiply 3 * 11
12 + 33 = x(4 + 9)

Combine like terms: 12 + 33 = 45
45 = x(4 + 9)

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

Reorder the terms for easier multiplication:
45 = 13x

Solving
45 = 13x

Solving for variable 'x'.

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

Add '-13x' to each side of the equation.
45 + -13x = 13x + -13x

Combine like terms: 13x + -13x = 0
45 + -13x = 0

Add '-45' to each side of the equation.
45 + -45 + -13x = 0 + -45

Combine like terms: 45 + -45 = 0
0 + -13x = 0 + -45
-13x = 0 + -45

Combine like terms: 0 + -45 = -45
-13x = -45

Divide each side by '-13'.
x = 3.461538462

Simplifying
x = 3.461538462