What is the justification for step 3 in the solution process?
0.8a − 0.1a = a − 2.5
step 1: 0.7a = a − 2.5
step 2: -0.3a = -2.5
step 3: a = 8.3

fa tha first one you gonna add y to both sides

it look like this

x-y+y=6+y

x=y+6

therefore your answer is

x =y+6

fa tha second one

you gonna flip tha equation

it gonna look like x-4y=y

then add 4 to both sides

it gonna look like tha

x-4 +4 =y +4

so therefore tha answer is x=y+4

step-by-step explanation:

answer: it's d

step-by-step explanation: