Basically the first thing you're going to have to do is move the y's to one side of the equal sign. To do this you can either add 0.3y to both sides of the equation OR subtract 0.7y from both sides of the equation.
Answer:
31
Step-by-step explanation:
Following PEMDAS: Do the division first followed by the subtraction.

Answer:
The first one and the second one
Step-by-step explanation:
Answer:
VWU and FWT are vertical angles.
<u>Their measure is same and:</u>
- VWU = 1/2(mVU + mFT)
- x = 1/2(174° + 52°)
- x = 113°
12.) This does not follow the rule of conservation because on the reactant side there is one Na and two Cl while the product side only has one Na and Cl. They are not equal and do not have the same number of atoms for the different elements. In the law of conservation matter cannot be created or destroyed and this does not follow the law.
13.) 2Na + Cl2 —> 2NaCl
Put a 2 in front of Na and a 2 in front of NaCl