Sole the equation for the indicated variable. zm= a+b/a, for a

zm= a+b/a, for a

Switch sides to have a on left side

a+b/a=zm

Now multiply both sides by a

A+b= zm(a)

A+b= ama

Now subtract azm both sides

A+b-azm=0

Subtract b both sides

A-azm= -b

Factor out a from ask

A(1 -zm)= -b

Divide each term by 1 - zm to get

A= - b/1-zm

step-by-step explanation:

ok so im not 100% sure but you would start by adding 5.1t and 1.9t beacuse they have the same variable. that is 7t.   then add -3.6 + 1.2 which is -2.4

so then keep that as -2.4 + 7t. i apologize if this is incorrect. best luck on your test < 3

14

step-by-step explanation:

14 x 3 = 42