Question

Mr. Pham wrote the equation below on the board.

18 minus 7 x = negative 20.5

What is the value of x?
Negative 5 and one-half
Negative StartFraction 5 Over 14 EndFraction
StartFraction 5 Over 14 EndFraction
5 and one-half

Answer 1

5 1/2

Explanation:

If you know simple math you will be able to calculate this. This person is right. Those of you looking for a fractional answer can simply convert 5.5 into a fraction. 5.5 = 5 1/2. don't give people bad ratings b/c of this.

5.5 is also the answer!

Answer 2

5.5

Explanation:

Given:

18 -7x = -20.5

We can find x by subtracting 18, then dividing by the coefficient of x. (This is known as a 2-step equation.)

-7x = -38.5 . . . . . subtract 18 from both sides

x = -38.5/-7 = 5.5 . . . . .divide by -7

The value of x is 5.5.