Ian is thinking of a number. He says the sum of that number and 8, multiplied by 3/4, is equal to -12. What equation can be used to find Ian's number?

Respuesta :

Answer:

x=-12

Step-by-step explanation:

Let the number be x

(x+8)(3/4)=-12

(3x+24)/4=-12

Multiply both sides by 4 in order to eliminate the denominator on the question side.

We have 4(3x+24)/4 = -12/4

On the question side, 4 crosses out 4

We are left with 3x+24=-12

To get the equation that can be used to find Ian's number, make x the subject of the formula

3x=-12-24

3x=-36

x=-36/3

x=-12