Find the missing angle measure. A. 145°
B 163°
C. 60°
D. 135°
E. 124°
F. x°
The measure of the missing angle is​

X– 4 = 12.5 can be written in words as

14+2 (56-1) this is an arithmetic sequence

How do you figure out which order to do two step equations in? like which thing do you subtract/add/multiply/divide first? i understand that you do the opposite of whatever's shown on the opposite side, but when?