Would be appreciated! how do you know which inverse operation to perform first when an equation contains two operations?

With an equation you must isolate x or whatever the variable is. Operations are the things used to make the difference like +,-,x,/.

A great example of this is the following

4x-12=0

First add 12 to both sides making the equation go to

4x=12

now divide 4 from both sides making

x=3

with the equation 12=10-3x: you would have to get rid of 10 first because 3 has a variable next to it so you would do inverse operation witch you add 10 to 12 and will get you 22 now you divide 3 because the inverse operation of multiplying is dividing and x will equal 7.3

x=9

step-by-step explanation:

11.2

step-by-step explanation:

when doing tangent the tangent of the angle is equal to the opposite side from the angle over the adjacent side to the angle.

tan43 = x / 12

move 12 over by multiplying each side by 12

12tan43 = x

x = about 11.2