4(x+9)=2x-6
Solve for x

Hi there!

We are given the equation below:

1. Expand 4 in the expression.

Cancel the brackets.

2. Isolate x-term and solve for the variable.

Finally, combine like terms.

Then divide both sides by 2 so we can finally leave only x-term.

3. Check the solution if it is right or wrong.

To check the answer, we simply substitute the value of x which is -21 in the equation and see if both sides are equal or not. If both sides are equal then the answer is correct, if not then the answer is wrong. Therefore,

Since both sides are equal when substitute in x = -21.

4. Answer

I hope this helps and let me know if you have any doubts!

-7

step-by-step explanation:

x^2 + 18x + 74 = (x + 9)^2 - 81 + 74

= (x + 9)^2 - 7.

so q = -7.

$9.41

step-by-step explanation: