Question

Witch value of x satisfies the equation 5(2x-9)+3=-7

Answer 1

x = 3.5

Explanation:

`5(2x-9) + 3 = -7`

First, we'll expand the parenthesis by multiplying 2x and -9 with 5:

`5(2x-9) + 3 = -7\\(5*2x) -(5*9) + 3 = -7\\10x-45+3 = -7`

Let's just simplify -45 + 3:

`10x-45+3 = -7\\10x -42 = -7`

Now we can add 42 to both sides:

`10x -42 = -7\\10x = -7 + 42\\10x = 35`

Finally, let's divide both sides by 10 to find x:

`10x = 35\\x = 35/10\\x = 3.5`

Answer: x = 3.5