Solve 5*4(x+3)=-4(x+3)*-3

$$5 \cdot 4 ( x + 3 ) = - 4 ( x + 3 ) \cdot - 3$$

Solve for x

$$x=-3$$

Steps for Solving Linear Equation

Multiply 5 and 4 to get 20.

$$20\left(x+3\right)=-4\left(x+3\right)\left(-3\right)$$

Use the distributive property to multiply 20 by x+3.

$$20x+60=-4\left(x+3\right)\left(-3\right)$$

Multiply -4 and -3 to get 12.

$$20x+60=12\left(x+3\right)$$

Use the distributive property to multiply 12 by x+3.

$$20x+60=12x+36$$

Subtract 12x from both sides.

$$20x+60-12x=36$$

Combine 20x and -12x to get 8x.

$$8x+60=36$$

Subtract 60 from both sides.

$$8x=36-60$$

Subtract 60 from 36 to get -24.

$$8x=-24$$

Divide both sides by 8.

$$x=\frac{-24}{8}$$

Divide -24 by 8 to get -3.

$$x=-3$$