Solve 3(y+4)=x

$$3 ( y + 4 ) = x$$

Solve for x

$$x=3\left(y+4\right)$$

Solution Steps

Use the distributive property to multiply 3 by y+4.

$$3y+12=x$$

Swap sides so that all variable terms are on the left hand side.

$$x=3y+12$$

Solve for y

$$y=\frac{x-12}{3}$$

Steps for Solving Linear Equation

Use the distributive property to multiply 3 by y+4.

$$3y+12=x$$

Subtract 12 from both sides.

$$3y=x-12$$

Divide both sides by 3.

$$\frac{3y}{3}=\frac{x-12}{3}$$

Dividing by 3 undoes the multiplication by 3.

$$y=\frac{x-12}{3}$$

Divide x-12 by 3.

$$y=\frac{x}{3}-4$$