Solve x=4+B/2*A

$$x = \frac { 4 + B } { 2 \times A }$$

Solve for A

$$\left\{\begin{matrix}A=\frac{B+4}{2x}\text{, }&B\neq -4\text{ and }x\neq 0\\A\neq 0\text{, }&x=0\text{ and }B=-4\end{matrix}\right.$$

Steps for Solving Linear Equation

Variable A cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by 2A.

$$x\times 2A=4+B$$

Reorder the terms.

$$2Ax=B+4$$

The equation is in standard form.

$$2xA=B+4$$

Divide both sides by 2x.

$$\frac{2xA}{2x}=\frac{B+4}{2x}$$

Dividing by 2x undoes the multiplication by 2x.

$$A=\frac{B+4}{2x}$$

Variable A cannot be equal to 0.

$$A=\frac{B+4}{2x}\text{, }A\neq 0$$

Solve for B

$$B=2\left(Ax-2\right)$$

$$A\neq 0$$