What value of x makes this equation true?

12 (x+3) = -8x

a. - 9

b. 9

c. - 1.8

d. 17

Other:

How many time does 85 goes into 221

Four friends go out for a meal. They round the total amount including the service charge to the nearest whole pound and pay this amount to Mando's. How much do they pay?

grant want to buy a T-shirt for 9.75 and shorts for 11.29. He wants to pay with one $20 bill use estimation to decide if this is reasonable. explain to what place value to round for an estimate that is useful in this situation.

The length of the hypotenuse of a 30 - 60 - 90 triangle is 16 cm. Find the length of the other two sides.

When to lines intersect what do they form

There were 200 fishes in an aquarium, 99% of which were red. how many red fishes must be removed to make the percentage of red fishes 98%?

What is the difference betwween 8/15 and - 2/3

The measure of an angle is seventeen times the measure of its supplementary angle. What is the measure of each angle?

Given that A=84, B=66 and a=13 solve triangle ABC. Round to the nearest hundredth.

Randy buys a pair of shoes that were originally priced at $147. He receives a 35% discount and pays 8.5% sales tax. How much does Randy pay? (How to solve too)