What 2x+78
if x is 72

222

Explanation:

because

2x + 78 = 222

2 (72) + 78

2 x 72 = 144

144 + 78 = 222

Where x is you multiply what x equals by the number on the left of it

- "the choice that is not an indicator of a chemical change is "state of matter changes". more common than not, chemical reactions produce energy in the form of light or heat. along with energy, they also produce a new substance called the product that could be in any state of matter (solid, gas, or liquid)."