Question

4) -16 - 10x = 4(1 - 5x)

Answer 1

To solve this question first open the brackets on the right-hand side

$4(1-5x)=4-20x$

Then re-write the equation as

$-16-10x=4-20x$

Collect the like terms,the terms with x's and those with no x's

$-16-4=-20x+10x\text{ }$

Apply addition

$-20=-10x$

Apply division by dividing both sides of the equation by -10 to get the value of x

$\frac{-20}{-10}=\frac{-10x}{-10}$$2=x$

The answer is x=2