U 7.2.PS-9 Solve. 5 1 7 3*+ 3x = 173 + 3 The value of x is​

Pls! does anybody know a shortcut for answering these types of questions in the future?

What dimensions can créate more than one triangle ?

The graph below shows the height of a projectile t seconds after it is launched. if acceleration due to gravity is -16 ft/s2, which equation models the height of the projectile correctly?