Solve (x-100)*(80*4200)+800*4200*(-50)=0

$$( x - 100 ) \times ( 80 \times 4200 ) + 800 \times 4200 \times ( - 50 ) = 0$$

Solve for x

$$x=600$$

Steps for Solving Linear Equation

Multiply 80 and 4200 to get 336000.

$$\left(x-100\right)\times 336000+800\times 4200\left(-50\right)=0$$

Use the distributive property to multiply x-100 by 336000.

$$336000x-33600000+800\times 4200\left(-50\right)=0$$

Multiply 800 and 4200 to get 3360000.

$$336000x-33600000+3360000\left(-50\right)=0$$

Multiply 3360000 and -50 to get -168000000.

$$336000x-33600000-168000000=0$$

Subtract 168000000 from -33600000 to get -201600000.

$$336000x-201600000=0$$

Add 201600000 to both sides. Anything plus zero gives itself.

$$336000x=201600000$$

Divide both sides by 336000.

$$x=\frac{201600000}{336000}$$

Divide 201600000 by 336000 to get 600.

$$x=600$$