Question

What is the value of x in the equation 4(2x + 10) = 0?

−5
−7
5
7

Answer 1

4(2x + 10)=0
8x + 40 = 0
8x = -40
x = -5

Answer 2

-5

Explanation:

To Solve x we can use the product rule and multiply 4 in the the brackets:

`4*(2*x+10)=0`

`8*x+40=0`

We can move the fourty to the right hand side of the equal sign and then simplify the equation by dividing the whole expression by 8:

`8*x=-40`

`x=-40/8=-5`

The value of x is -5